16% Trimmed Mean, Original Methodology
        Trim            1 month
        1 month         annualized
Feb-67	0.002096	2.5
Mar-67	-0.000288	-0.3
Apr-67	0.002065	2.5
May-67	0.002183	2.7
Jun-67	0.003178	3.9
Jul-67	0.003277	4.0
Aug-67	0.003240	4.0
Sep-67	0.002731	3.3
Oct-67	0.002901	3.5
Nov-67	0.003188	3.9
Dec-67	0.002969	3.6
Jan-68	0.004074	5.0
Feb-68	0.003409	4.2
Mar-68	0.003309	4.0
Apr-68	0.002976	3.6
May-68	0.002534	3.1
Jun-68	0.005845	7.2
Jul-68	0.004211	5.2
Aug-68	0.004914	6.1
Sep-68	0.002745	3.3
Oct-68	0.005117	6.3
Nov-68	0.004389	5.4
Dec-68	0.004041	5.0
Jan-69	0.003820	4.7
Feb-69	0.003292	4.0
Mar-69	0.006602	8.2
Apr-69	0.005574	6.9
May-69	0.004395	5.4
Jun-69	0.004302	5.3
Jul-69	0.004851	6.0
Aug-69	0.004707	5.8
Sep-69	0.005633	7.0
Oct-69	0.003479	4.3
Nov-69	0.005438	6.7
Dec-69	0.005731	7.1
Jan-70	0.004124	5.1
Feb-70	0.006455	8.0
Mar-70	0.004659	5.7
Apr-70	0.004466	5.5
May-70	0.004711	5.8
Jun-70	0.003604	4.4
Jul-70	0.003736	4.6
Aug-70	0.004316	5.3
Sep-70	0.005281	6.5
Oct-70	0.003892	4.8
Nov-70	0.004773	5.9
Dec-70	0.004763	5.9
Jan-71	0.002616	3.2
Feb-71	0.000835	1.0
Mar-71	0.001115	1.3
Apr-71	0.003130	3.8
May-71	0.003229	3.9
Jun-71	0.005750	7.1
Jul-71	0.002479	3.0
Aug-71	0.002869	3.5
Sep-71	0.002027	2.5
Oct-71	0.001524	1.8
Nov-71	0.002195	2.7
Dec-71	0.002822	3.4
Jan-72	0.003525	4.3
Feb-72	0.002807	3.4
Mar-72	0.002514	3.1
Apr-72	0.001947	2.4
May-72	0.002443	3.0
Jun-72	0.002617	3.2
Jul-72	0.002897	3.5
Aug-72	0.002193	2.7
Sep-72	0.003036	3.7
Oct-72	0.002914	3.6
Nov-72	0.003257	4.0
Dec-72	0.002562	3.1
Jan-73	0.002925	3.6
Feb-73	0.004712	5.8
Mar-73	0.004466	5.5
Apr-73	0.005706	7.1
May-73	0.005793	7.2
Jun-73	0.004298	5.3
Jul-73	0.001968	2.4
Aug-73	0.006489	8.1
Sep-73	0.004409	5.4
Oct-73	0.009771	12.4
Nov-73	0.006130	7.6
Dec-73	0.006069	7.5
Jan-74	0.008048	10.1
Feb-74	0.011122	14.2
Mar-74	0.008517	10.7
Apr-74	0.007303	9.1
May-74	0.010046	12.7
Jun-74	0.009289	11.7
Jul-74	0.008047	10.1
Aug-74	0.012814	16.5
Sep-74	0.011686	15.0
Oct-74	0.009027	11.4
Nov-74	0.007624	9.5
Dec-74	0.008500	10.7
Jan-75	0.006545	8.1
Feb-75	0.005895	7.3
Mar-75	0.003395	4.2
Apr-75	0.004163	5.1
May-75	0.002311	2.8
Jun-75	0.006431	8.0
Jul-75	0.007009	8.7
Aug-75	0.004091	5.0
Sep-75	0.006380	7.9
Oct-75	0.006469	8.0
Nov-75	0.005248	6.5
Dec-75	0.005424	6.7
Jan-76	0.003261	4.0
Feb-76	0.002183	2.7
Mar-76	0.001892	2.3
Apr-76	0.001809	2.2
May-76	0.004225	5.2
Jun-76	0.004989	6.2
Jul-76	0.005875	7.3
Aug-76	0.005312	6.6
Sep-76	0.005759	7.1
Oct-76	0.004670	5.8
Nov-76	0.004288	5.3
Dec-76	0.003121	3.8
Jan-77	0.005984	7.4
Feb-77	0.006122	7.6
Mar-77	0.005215	6.4
Apr-77	0.005687	7.0
May-77	0.004862	6.0
Jun-77	0.005635	7.0
Jul-77	0.005674	7.0
Aug-77	0.004366	5.4
Sep-77	0.004911	6.1
Oct-77	0.004205	5.2
Nov-77	0.006117	7.6
Dec-77	0.004553	5.6
Jan-78	0.005796	7.2
Feb-78	0.005047	6.2
Mar-78	0.006696	8.3
Apr-78	0.006941	8.7
May-78	0.008101	10.2
Jun-78	0.007483	9.4
Jul-78	0.007438	9.3
Aug-78	0.006853	8.5
Sep-78	0.008447	10.6
Oct-78	0.009158	11.6
Nov-78	0.007462	9.3
Dec-78	0.005368	6.6
Jan-79	0.007578	9.5
Feb-79	0.009981	12.7
Mar-79	0.008287	10.4
Apr-79	0.009422	11.9
May-79	0.009531	12.1
Jun-79	0.008812	11.1
Jul-79	0.009679	12.3
Aug-79	0.010390	13.2
Sep-79	0.008993	11.3
Oct-79	0.010887	13.9
Nov-79	0.011137	14.2
Dec-79	0.011029	14.1
Jan-80	0.012552	16.1
Feb-80	0.010588	13.5
Mar-80	0.012401	15.9
Apr-80	0.010075	12.8
May-80	0.010194	12.9
Jun-80	0.010874	13.9
Jul-80	0.000328	0.4
Aug-80	0.004898	6.0
Sep-80	0.007753	9.7
Oct-80	0.009876	12.5
Nov-80	0.010378	13.2
Dec-80	0.009218	11.6
Jan-81	0.007525	9.4
Feb-81	0.005629	7.0
Mar-81	0.005824	7.2
Apr-81	0.006172	7.7
May-81	0.008521	10.7
Jun-81	0.008905	11.2
Jul-81	0.011223	14.3
Aug-81	0.007770	9.7
Sep-81	0.009286	11.7
Oct-81	0.002792	3.4
Nov-81	0.004389	5.4
Dec-81	0.003374	4.1
Jan-82	0.002958	3.6
Feb-82	0.003811	4.7
Mar-82	0.000445	0.5
Apr-82	0.006786	8.5
May-82	0.009651	12.2
Jun-82	0.009605	12.2
Jul-82	0.005339	6.6
Aug-82	0.002854	3.5
Sep-82	-0.000420	-0.5
Oct-82	0.002429	3.0
Nov-82	-0.000772	-0.9
Dec-82	-0.004031	-4.7
Jan-83	0.004129	5.1
Feb-83	0.002907	3.5
Mar-83	0.001964	2.4
Apr-83	0.005026	6.2
May-83	0.003316	4.1
Jun-83	0.002473	3.0
Jul-83	0.003250	4.0
Aug-83	0.003024	3.7
Sep-83	0.003011	3.7
Oct-83	0.002869	3.5
Nov-83	0.003489	4.3
Dec-83	0.002630	3.2
Jan-84	0.004991	6.2
Feb-84	0.003948	4.8
Mar-84	0.003099	3.8
Apr-84	0.004365	5.4
May-84	0.001915	2.3
Jun-84	0.002590	3.2
Jul-84	0.004087	5.0
Aug-84	0.003811	4.7
Sep-84	0.003181	3.9
Oct-84	0.003186	3.9
Nov-84	0.001966	2.4
Dec-84	0.002684	3.3
Jan-85	0.002708	3.3
Feb-85	0.004709	5.8
Mar-85	0.003907	4.8
Apr-85	0.002472	3.0
May-85	0.002505	3.0
Jun-85	0.002753	3.4
Jul-85	0.002299	2.8
Aug-85	0.001936	2.3
Sep-85	0.002108	2.6
Oct-85	0.003020	3.7
Nov-85	0.004729	5.8
Dec-85	0.003333	4.1
Jan-86	0.003966	4.9
Feb-86	0.001139	1.4
Mar-86	0.002497	3.0
Apr-86	0.001938	2.4
May-86	0.001955	2.4
Jun-86	0.003708	4.5
Jul-86	0.002286	2.8
Aug-86	0.002596	3.2
Sep-86	0.002974	3.6
Oct-86	0.002826	3.4
Nov-86	0.002660	3.2
Dec-86	0.002982	3.6
Jan-87	0.004196	5.2
Feb-87	0.002747	3.3
Mar-87	0.002692	3.3
Apr-87	0.004696	5.8
May-87	0.003158	3.9
Jun-87	0.003092	3.8
Jul-87	0.002503	3.0
Aug-87	0.004248	5.2
Sep-87	0.003363	4.1
Oct-87	0.003615	4.4
Nov-87	0.002849	3.5
Dec-87	0.001907	2.3
Jan-88	0.003244	4.0
Feb-88	0.002763	3.4
Mar-88	0.003035	3.7
Apr-88	0.004427	5.4
May-88	0.002504	3.0
Jun-88	0.004010	4.9
Jul-88	0.004033	4.9
Aug-88	0.003871	4.7
Sep-88	0.004496	5.5
Oct-88	0.003546	4.3
Nov-88	0.003262	4.0
Dec-88	0.003047	3.7
Jan-89	0.004249	5.2
Feb-89	0.003942	4.8
Mar-89	0.004053	5.0
Apr-89	0.003543	4.3
May-89	0.004234	5.2
Jun-89	0.002779	3.4
Jul-89	0.003919	4.8
Aug-89	0.002444	3.0
Sep-89	0.002431	3.0
Oct-89	0.005381	6.7
Nov-89	0.003986	4.9
Dec-89	0.003555	4.4
Jan-90	0.005213	6.4
Feb-90	0.003804	4.7
Mar-90	0.004280	5.3
Apr-90	0.003321	4.1
May-90	0.002072	2.5
Jun-90	0.005065	6.2
Jul-90	0.004844	6.0
Aug-90	0.005200	6.4
Sep-90	0.003506	4.3
Oct-90	0.003908	4.8
Nov-90	0.003001	3.7
Dec-90	0.003728	4.6
Jan-91	0.006109	7.6
Feb-91	0.003097	3.8
Mar-91	0.001987	2.4
Apr-91	0.002513	3.1
May-91	0.002995	3.7
Jun-91	0.002275	2.8
Jul-91	0.003384	4.1
Aug-91	0.002965	3.6
Sep-91	0.002967	3.6
Oct-91	0.002385	2.9
Nov-91	0.003677	4.5
Dec-91	0.003278	4.0
Jan-92	0.002496	3.0
Feb-92	0.001899	2.3
Mar-92	0.002896	3.5
Apr-92	0.002141	2.6
May-92	0.002104	2.6
Jun-92	0.003086	3.8
Jul-92	0.002245	2.7
Aug-92	0.002261	2.7
Sep-92	0.001533	1.9
Oct-92	0.003438	4.2
Nov-92	0.002603	3.2
Dec-92	0.001734	2.1
Jan-93	0.003158	3.9
Feb-93	0.002356	2.9
Mar-93	0.001527	1.8
Apr-93	0.003287	4.0
May-93	0.002174	2.6
Jun-93	0.001784	2.2
Jul-93	0.001458	1.8
Aug-93	0.002632	3.2
Sep-93	0.001688	2.0
Oct-93	0.003105	3.8
Nov-93	0.002528	3.1
Dec-93	0.002390	2.9
Jan-94	0.001271	1.5
Feb-94	0.002720	3.3
Mar-94	0.001968	2.4
Apr-94	0.001446	1.7
May-94	0.002615	3.2
Jun-94	0.002405	2.9
Jul-94	0.002131	2.6
Aug-94	0.003297	4.0
Sep-94	0.001715	2.1
Oct-94	0.001495	1.8
Nov-94	0.002800	3.4
Dec-94	0.000527	0.6
Jan-95	0.003180	3.9
Feb-95	0.002338	2.8
Mar-95	0.002375	2.9
Apr-95	0.002553	3.1
May-95	0.002167	2.6
Jun-95	0.001861	2.3
Jul-95	0.001768	2.1
Aug-95	0.002728	3.3
Sep-95	0.001877	2.3
Oct-95	0.003330	4.1
Nov-95	0.001884	2.3
Dec-95	0.001651	2.0
Jan-96	0.003127	3.8
Feb-96	0.002409	2.9
Mar-96	0.002566	3.1
Apr-96	0.002281	2.8
May-96	0.002315	2.8
Jun-96	0.001709	2.1
Jul-96	0.003006	3.7
Aug-96	0.001682	2.0
Sep-96	0.002241	2.7
Oct-96	0.002982	3.6
Nov-96	0.002614	3.2
Dec-96	0.001533	1.9
Jan-97	0.002286	2.8
Feb-97	0.002153	2.6
Mar-97	0.001216	1.5
Apr-97	0.001812	2.2
May-97	0.001580	1.9
Jun-97	0.001670	2.0
Jul-97	0.001928	2.3
Aug-97	0.001271	1.5
Sep-97	0.001407	1.7
Oct-97	0.002244	2.7
Nov-97	0.001611	2.0
Dec-97	0.001493	1.8
Jan-98	0.001296	1.6
Feb-98	0.001265	1.5
Mar-98	0.001953	2.4
Apr-98	0.001640	2.0
May-98	0.002081	2.5
Jun-98	0.001504	1.8
Jul-98	0.001909	2.3
Aug-98	0.002090	2.5
Sep-98	0.000760	0.9
Oct-98	0.001893	2.3
Nov-98	0.001636	2.0
Dec-98	0.001105	1.3
Jan-99	0.001415	1.7
Feb-99	0.000471	0.6
Mar-99	0.000933	1.1
Apr-99	0.002579	3.1
May-99	0.001118	1.3
Jun-99	0.001034	1.2
Jul-99	0.001986	2.4
Aug-99	0.001885	2.3
Sep-99	0.002506	3.0
Oct-99	0.001367	1.7
Nov-99	0.001516	1.8
Dec-99	0.001618	2.0
Jan-00	0.002889	3.5
Feb-00	0.0022944	2.8
Mar-00	0.0030324	3.7
Apr-00	0.0011465	1.4
May-00	0.0023911	2.9
Jun-00	0.0027955	3.4
Jul-00	0.0026287	3.2
Aug-00	0.001964	2.4
Sep-00	0.0026752	3.3
Oct-00	0.0018421	2.2
Nov-00	0.0016287	2.0
Dec-00	0.0026753	3.3
Jan-01	0.0032876	4.0
Feb-01	0.0022445	2.7
Mar-01	0.0021642	2.6
Apr-01	0.001814	2.2
May-01	0.0027491	3.3
Jun-01	0.0026412	3.2
Jul-01	0.001546	1.9
Aug-01	0.0016841	2.0
Sep-01	0.0018753	2.3
Oct-01	0.0016171	2.0
Nov-01	0.0023079	2.8
Dec-01	0.0015213	1.8
Jan-02	0.0015751	1.9
Feb-02	0.0014184	1.7
Mar-02	0.0017523	2.1
Apr-02	0.0024458	3.0
May-02	0.0016379	2.0
Jun-02	0.0008938	1.1
Jul-02	0.0022303	2.7
Aug-02	0.0021034	2.6
Sep-02	0.001727	2.1
Oct-02	0.0016744	2.0
Nov-02	0.0019948	2.4
Dec-02	0.0013465	1.6
Jan-03	0.0019102	2.3
Feb-03	0.0022245	2.7
Mar-03	0.0015416	1.9
Apr-03	-0.0000214	0.0
May-03	0.0007324	0.9
Jun-03	0.0007746	0.9
Jul-03	0.0022333	2.7
Aug-03	0.0017451	2.1
Sep-03	0.0013661	1.7
Oct-03	0.0012833	1.6
Nov-03	0.0003418	0.4
Dec-03	0.0026382	3.2
Jan-04	0.0014861	1.8
Feb-04	0.0026344	3.2
Mar-04	0.0022417	2.7
Apr-04	0.0019617	2.4
May-04	0.0025165	3.1
Jun-04	0.0025038	3.0
Jul-04	0.0013558	1.6
Aug-04	0.0008629	1.0
Sep-04	0.0012665	1.5
Oct-04	0.002068	2.5
Nov-04	0.001409	1.7
Dec-04	0.001662	2.0
Jan-05	0.0024304	3.0
Feb-05	0.0025693	3.1
Mar-05	0.0019374	2.3
Apr-05	0.0028943	3.5
May-05	0.001481	1.8
Jun-05	0.0004663	0.6
Jul-05	0.0027736	3.4
Aug-05	0.0018493	2.2
Sep-05	0.0031924	3.9
Oct-05	0.0019576	2.4
Nov-05	0.0024393	3.0
Dec-05	0.0012164	1.5
Jan-06	0.0031024	3.8
Feb-06	0.0014538	1.8
Mar-06	0.0026832	3.3
Apr-06	0.0024716	3.0
May-06	0.0026155	3.2
Jun-06	0.0026597	3.2
Jul-06	0.0027195	3.3
Aug-06	0.0025279	3.1
Sep-06	0.0020362	2.5
Oct-06	0.0010022	1.2
Nov-06	0.0011033	1.3
Dec-06	0.0022631	2.7
Jan-07	0.0025719	3.1
Feb-07	0.0029877	3.6
Mar-07	0.0026552	3.2
Apr-07	0.002043	2.5
May-07	0.0018848	2.3
Jun-07	0.0017726	2.1
Jul-07	0.0015113	1.8