DJF	MAM	JJA	SON
1905	994.113	984.799	991.795	989.564
1906	990.993	991	989.222	984.476
1907	990.578	988.184	991.606	986.656
1908	993.593	988.063	987.201	985.995
1909	995.135	988.265	988.244	987.34
1910	991.393	987.872	991.935	986.466
1911	1000.99	989.137	989.349	986.501
1912	993.305	988.18	992.047	989.098
1913	992.671	994.009	992.667	987.366
1914	994.252	991.133	992.21	985.291
1915	992.279	992.868	991.904	990.83
1916	991.968	992.639	989.276	986.91
1917	989.911	987.332	989.835	984.202
1918	994.21	989.545	995.241	987.45
1919	991.95	985.933	991.186	988.684
1920	993.646	990.063	989.065	986.953
1921	991.719	989.983	993.374	984.559
1922	996.076	991.775	989.889	985.176
1923	990.528	992.847	994.576	987.098
1924	994.39	989.939	985.59	984.912
1925	1001.222	990.707	989.883	989.489
1926	995.046	988.366	991.119	990.159
1927	987.034	991.322	992.53	984.596
1928	997.524	986.445	989.279	988.766
1929	996.011	989.002	989.747	983.807
1930	995.488	984.648	993.449	986.399
1931	994.216	985.347	990.706	984.176
1932	996.414	986.219	992.884	983.069
1933	990.993	992.185	987.918	982.667
1934	989.935	989.493	990.893	984.478
1935	992.475	991.777	990.787	984.022
1936	997.244	989.812	990.709	988.327
1937	989.824	993.039	987.315	982.373
1938	998.494	990.826	984.951	984.351
1939	995.408	986.322	996.471	985.715
1940	990.593	993.344	985.266	983.819
1941	996.893	991.993	993.803	986.79
1942	994.18	988.855	989.596	987.5
1943	989.163	990.596	990.93	984.406
1944	995.001	990.827	992.158	989.326
1945	997.558	994.622	991.711	988.578
1946	997.721	989.093	996.372	990.842
1947	992.422	985.982	993.028	984.708
1948	996.79	993.156	991.455	988.548
1949	998.24	988.96	994.742	983.673
1950	992.627	990.188	988.156	982.051
1951	995.39	994.162	993.74	988.521
1952	990.904	992.513	991.025	987.364
1953	993.828	993.903	991.29	989.172
1954	995.019	993.808	992.058	984.109
1955	993.951	992.148	992.721	987.017
1956	993.846	993.593	993.674	985.439
1957	996.782	995.391	994.132	988.762
1958	989.526	994.225	994.349	986.302
1959	992.238	997.653	992.212	985.628
1960	994.316	989.926	990.865	984.813
1961	988.031	993.262	991.214	985.88
1962	987.577	990.884	992.888	987.979
1963	994.581	992.209	995.809	984.378
1964	999.925	989.735	999.832	988.845
1965	994.981	991.989	993.234	986.221
1966	996.411	993.257	988.153	983.748
1967	995.31	992.022	987.697	986.561
1968	996.862	993.837	992.982	992.599
1969	990.802	992.46	988.11	986.317
1970	994.854	994.354	989.718	987.963
1971	997.33	991.737	990.146	989.418
1972	994.181	995.254	995.647	986.723
1973	988.751	993.092	989.704	983.658
1974	993.847	989.076	997.367	983.889
1975	996.285	994.819	993.483	985.933
1976	996.566	989.482	993.904	985.489
1977	989.281	994.993	993.13	985.481
1978	993.512	990.844	995.522	985.967
1979	998.671	990.962	987.014	986.372
1980	993.079	993.638	992.125	988.843
1981	992.844	991.625	992.987	986.011
1982	999.836	991.158	991.852	988.724
1983	995.456	995.272	990.089	984.212
1984	994.864	992.639	989.962	984.362
1985	993.074	992.937	990.633	983.394
1986	993.238	994.02	995.423	986.744
1987	992.644	992.294	992.032	988.025
1988	991.826	989.182	991.031	991.12
1989	991.918	990.209	986.683	984.986
1990	993.154	994.416	990.503	984.79
1991	996.317	991.73	994.384	990.144
1992	994.213	993.01	996.799	984.589
1993	990.906	991.749	986.654	984.495
1994	989.688	992.517	992.682	990.129
1995	989.752	990.679	997.696	985.223
1996	992.346	990.931	994.848	988.768
1997	992.141	989.961	990.583	986.927
1998	986.883	989.816	988.687	985.319
1999	988.663	987.697	989.078	982.271
2000	996.361	988.596	990.698	987.244
2001	989.525	990.092	989.752	982.165
2002	991.997	994.83	993.331	989.925
2003	993.992	987.754	987.706	989.398
2004	993.015	987.585	990.303	986.694
2005	991.935	991.33	990.889	983.973
2006	991.14	991.451	989.425	984.981
2007	986.029	991.09	993.984	986.401
2008	987.996	992.503	988.847	985.186
2009	992.487	994.434	992.009	986.424
2010	991.361	990.521	983.098	983.099
2011	986.622	992.255	989.432	987.058
2012	991.368	988.186		988.101
2013	991.312	989.634		988.459