YEAR	JAN	FEB	MAR	APR	MAY	JUN	JUL	AUG	SEP	OCT	NOV	DEC
1912	2.5013	2.189	1.2993	2.99	13.3618	15.8838	12.8062	10.6082	5.6048	4.1014	2.7603	2.0377
1913	1.3832	1.7169	1.527	2.5496	7.2154	21.4678	17.3638	16.041	10.1883	4.7235	2.6215	1.9713
1914	2.8223	1.904	2.4263	5.4342	15.3567	18.5164	17.4925	9.9507	5.5581	5.2747	4.5723	2.8882
1915	2.3725	1.8126	2.158	6.4947	11.0894	11.95	13.4473	9.9006	4.3753	3.4009	3.0726	1.568
1916	1.4542	2.368	2.0903	3.3121	10.3792	17.0614	17.3068	10.514	6.0929	4.3338	2.6918	1.7222
1917	1.5787	1.3125	1.2914	1.9877	11.1663	20.425	17.4424	9.9697	5.5184	5.6212	5.0397	4.2621
1918	4.4392	2.7689	2.5814	5.2255	14.167	20.6617	18.652	11.5629	6.6649	4.4107	3.0533	2.2418
1919	1.7895	1.4131	1.3315	3.5361	10.8492	16.7754	18.5622	12.4399	6.27	3.8223	3.4242	3.1124
1920	2.6963	2.0891	1.7343	2.2213	10.6652	18.754	25.7161	14.6275	8.1112	8.8724	4.8211	3.2193
1921	2.5045	2.175	2.2076	4.0901	14.2741	24.1497	17.6964	11.3167	7.0209	7.2377	5.0406	3.6308
1922	2.4313	1.6387	1.579	2.199	10.7896	21.0626	14.5333	9.2284	6.493	6.1491	3.4051	3.1336
1923	2.4273	1.6305	1.6379	3.65	12.9453	20.298	15.1978	9.345	6.4705	3.4543	2.4341	2.2538
1924	1.5519	2.2728	1.9146	2.2641	16.1119	17.5997	13.5657	10.438	8.049	5.2186	3.3902	3.2991
1925	2.3273	1.8865	1.8802	5.7848	18.9216	18.201	12.8961	8.0844	6.1068	3.0535	2.3163	4.5427
1926	3.3338	2.0736	2.5142	7.032	12.8952	11.3728	11.5189	6.702	4.0827	3.8782	3.2797	2.3617
1927	2.1074	1.5314	1.5338	2.3223	8.9001	19.0754	15.7455	9.6716	6.4973	7.8166	4.4945	2.7677
1928	2.8091	1.9574	2.1687	4.028	17.3422	19.2879	15.552	8.64	4.6129	3.4888	2.2302	1.4462
1929	1.3921	1.2014	1.3539	1.7512	7.3742	16.0203	11.1059	7.9453	4.9067	3.5891	2.5548	2.1239
1930	2.6109	1.932	1.7015	4.6793	9.39	16.1248	14.3908	8.3843	5.6497	3.8197	3.0083	2.2505
1931	2.0671	1.7156	2.0082	2.8909	11.4748	15.8017	13.964	7.8961	5.6471	5.222	3.565	2.3316
1932	1.9305	1.9337	2.503	5.489	14.6629	18.5527	13.8076	10.4924	6.1301	4.5161	4.6397	3.8576
1933	2.6493	1.8248	1.8077	3.239	13.621	20.5805	21.3054	13.8283	7.3915	5.5452	7.3207	4.5792
1934	3.6098	3.3143	3.3471	8.767	17.4312	17.0364	12.6706	9.3079	6.753	6.4895	6.2087	3.6211
1935	3.3252	3.7627	2.9146	3.1518	12.3284	18.1604	16.9888	9.4928	5.87	4.193	3.2365	2.7594
1936	2.0129	1.7427	1.7733	4.3462	16.2389	18.5751	13.1985	7.9479	5.5745	5.4976	4.9127	3.6528
1937	1.6563	1.2761	1.7061	3.4788	10.3827	17.4381	13.6305	8.5242	6.359	4.4539	4.5688	2.6927
1938	2.2039	1.5306	1.8769	3.5885	9.8781	14.4919	11.1819	6.3841	5.3274	3.7031	2.3598	1.993
1939	1.9507	1.4013	1.912	5.5089	15.3809	16.4385	14.4616	9.2604	5.7568	5.6169	5.3067	6.4705
1940	2.9638	2.277	2.6152	6.1197	13.0291	15.304	13.0723	9.0608	6.1569	5.0164	3.1995	2.4566
1941	2.1667	1.9135	2.2542	6.1517	9.4677	11.8584	10.5996	7.1384	6.8213	9.123	5.7707	4.5179
1942	2.6325	1.8761	1.7798	3.5014	9.5135	15.6591	12.7716	8.4568	4.898	4.212	2.9093	2.5779
1943	2.139	1.8541	1.7512	5.6278	8.4119	14.9498	15.5399	9.4064	5.2661	3.9407	2.5762	1.8942
1944	1.7845	1.5344	1.6416	4.1043	8.8076	13.9605	9.7822	8.5916	6.4212	6.0169	4.3589	2.8103
1945	2.3293	1.8076	1.7239	2.342	11.0082	17.3612	11.3754	6.9146	4.5118	3.5891	2.633	2.0451
1946	1.7572	1.4208	1.7684	2.9798	16.4108	19.3847	14.2681	8.5959	4.6708	2.7697	1.8855	1.8092
1947	1.5771	1.4412	1.9157	5.3698	14.6267	18.589	14.4953	8.5717	5.4959	5.5572	3.9787	2.8223
1948	2.5564	1.7374	1.6919	2.5097	17.5496	27.8303	13.7454	12.331	8.9778	6.6727	4.1645	2.22
1949	1.8008	1.571	1.8516	5.5816	17.0873	15.9062	10.9443	9.2042	5.4432	3.996	4.6958	3.2205
1950	1.9456	1.6905	1.7875	2.4683	11.1473	23.0196	17.807	8.9191	5.5054	4.2431	4.0077	3.5182
1951	1.959	1.6434	1.5952	4.3999	15.1831	17.6075	15.6289	8.735	4.911	4.1118	2.3867	1.6717
1952	1.959	1.6948	1.5952	4.3999	15.1831	17.6075	15.6289	8.735	4.911	4.1118	2.3867	1.6717
1953	1.7675	1.7085	1.6344	2.3847	13.2805	15.5995	12.9643	7.6231	6.0359	5.2877	5.1823	3.3316
1954	2.2582	2.2725	2.0752	2.0643	10.9764	19.6966	19.2093	11.95	8.5173	6.6597	6.8316	4.8341
1955	2.9478	2.2203	1.986	3.3118	9.4306	20.6168	21.1533	11.8688	5.6013	4.2984	3.2784	2.3285
1956	1.9554	1.6009	1.6529	4.4025	15.5244	20.0673	13.2598	7.439	5.0077	5.0052	3.6448	2.7564
1957	3.2337	2.8025	2.497	3.9221	21.8825	17.6697	12.191	9.0772	6.6191	4.2587	4.4185	4.0193
1958	3.5165	2.8496	3.3644	6.3625	17.1158	19.2698	11.6148	7.3336	5.8596	7.566	4.1818	3.6556
1959	2.9899	2.02	2.1831	4.0374	12.9358	19.3277	16.9949	9.7243	10.4026	9.1428	7.3259	4.981
1960	3.228	2.6507	2.6747	6.5543	11.7685	18.0801	18.7998	9.8772	7.6602	7.4468	5.3931	3.3618
1961	3.1499	2.471	2.6985	5.4752	14.0633	20.1865	11.8688	7.9592	6.9759	7.2377	4.461	2.4262
1962	2.6545	3.4243	2.1629	6.1576	11.118	18.0619	16.3339	12.0338	7.0304	6.7357	7.02	4.7537
1963	3.4794	3.9191	3.9139	5.5279	11.8377	17.2757	13.9329	9.5913	7.4295	6.2009	4.2301	3.4766
1964	2.9355	2.514	2.3563	3.8731	10.6842	26.4868	20.9174	13.4793	8.7057	9.2629	5.6687	3.4992
1965	2.9869	2.6546	2.9064	5.4315	13.9908	19.1687	13.5372	9.6924	5.7905	6.1249	5.0613	3.1882
1966	2.3725	2.0704	2.3476	6.3392	14.1748	18.2287	15.8328	10.2678	6.5042	6.3348	4.3615	4.0822
1967	3.1126	2.6605	2.5867	3.4843	14.5247	25.8206	17.5608	9.6085	6.1543	5.5244	5.2229	3.344
1968	4.0581	3.6279	4.9067	4.568	13.9951	20.4595	19.3044	10.0915	8.0024	6.5111	5.9003	3.5999
1969	2.7675	2.3833	2.4018	6.0402	13.7912	16.9085	11.1015	8.4612	7.0943	6.7072	5.2091	3.9528
1970	2.702	2.4524	2.5678	3.6539	9.72	17.0027	10.1278	6.493	4.682	4.1075	2.6395	2.1669
1971	2.2894	2.4967	2.2517	4.0292	16.4039	19.6733	14.9602	9.5515	6.1128	5.0553	4.0055	2.4329
1972	2.0732	2.1485	4.0083	5.4415	17.2636	27.87	19.637	11.0428	5.8977	5.1866	3.8811	2.6794
1973	2.6362	2.0361	2.2777	4.0091	13.1587	16.0289	13.3911	7.8564	4.3667	5.5763	4.1878	3.0314
1974	2.6425	2.2472	2.4828	6.0117	15.7749	21.8618	20.0154	11.6657	6.3262	5.1667	3.3515	2.619
1975	2.1346	1.8877	1.971	2.8407	10.5641	17.6973	16.2708	9.1558	5.9702	5.2212	6.118	3.9658
1976	3.0616	2.5852	2.4752	5.9711	18.932	18.786	20.5546	17.242	11.55	6.7323	4.676	3.9709
1977	3.3252	2.9817	3.0257	6.0826	12.6239	14.6923	12.9384	9.6854	6.0523	4.4254	3.2664	2.7664
1978	2.361	1.9126	2.5486	5.0717	10.5918	14.8444	12.1522	7.9453	6.7288	5.5987	4.1244	2.7046
1979	2.1464	1.7431	2.5641	3.3326	13.1579	16.4955	13.0136	6.9932	4.7364	3.7956	2.3783	2.551
1980	1.8307	1.6265	1.883	4.5621	13.7212	12.7129	10.7378	7.2732	6.7392	5.5598	4.2371	5.0977
1981	4.9697	3.5796	3.4871	4.866	13.2589	16.2346	13.1017	9.7019	5.514	4.0988	5.0535	3.0432
1982	2.1985	2.242	2.2597	2.6096	14.3484	22.5158	19.3648	12.9972	9.3709	6.1906	3.8056	2.9722
1983	2.6042	2.3647	3.3169	5.1633	10.9598	15.7118	14.0236	9.2733	5.7387	3.9295	5.3196	2.3522
1984	3.1068	2.5383	3.0969	5.2488	7.6982	16.5136	17.6178	10.12	7.5686	6.8628	3.5415	2.3058
1985	1.9808	1.7082	2.1446	5.3641	14.1903	19.154	12.4442	7.4148	5.0406	5.3032	3.1961	1.9978
1986	2.1786	1.9564	3.4205	5.4156	10.1002	21.7469	14.3994	8.6167	4.8911	3.9243	3.4848	2.4331
1987	2.6889	2.2832	3.4841	5.9098	13.7264	15.1468	10.902	7.9756	4.3425	2.7362	3.1466	2.1722
1988	1.685	1.645	2.1659	6.2493	14.5886	15.4034	11.8584	8.0732	4.9067	4.123	3.802	2.4794
1989	2.142	1.6562	1.8268	4.6027	13.0291	15.5909	10.6764	8.4897	4.7779	3.6858	5.3482	3.7794
1990	3.2278	2.0339	2.4806	7.7665	13.5207	22.7102	16.7901	8.9372	4.6328	4.0841	5.4795	3.1742
1991	2.3227	3.7695	2.8363	6.9733	15.5572	17.8986	16.7979	11.5949	7.0658	4.1861	3.5554	2.9635
1992	2.9186	2.9511	4.7321	7.6369	12.8434	15.3861	10.3671	6.8377	5.0751	5.8735	4.5092	2.2859
1993	1.7723	1.6153	2.0124	5.0194	15.0604	12.7794	9.7416	7.7717	4.5732	2.8391	2.7177	2.2186
1994	2.1928	1.7152	3.1177	9.3208	15.9788	15.4423	13.9372	7.757	4.0945	3.6184	2.2221	2.1813
1995	1.7524	2.0248	2.0486	4.9196	11.9163	15.2461	10.781	9.3839	4.841	4.6431	5.4	4.1705
1996	3.0077	2.3724	2.987	7.9764	10.9037	17.496	17.1418	10.1209	6.7677	5.7162	4.8151	3.2538
1997	2.7908	2.2692	2.8963	6.6925	19.872	24.8357	19.5748	11.9033	6.4437	8.7644	6.4981	3.5398
1998	2.5412	2.2308	2.821	4.6336	15.3576	12.9237	10.482	7.1669	3.8578	3.7351	3.069	2.2459
1999	2.2144	1.7851	2.0322	6.1862	13.9769	23.0869	23.1431	14.0564	6.8152	4.3191	5.0363	3.2994
2000	2.3359	1.8822	1.949	5.1251	11.429	17.4779	17.464	9.9887	7.3656	5.146	4.5706	2.1756
2001	2.0195	1.4033	1.4374	3.1511	9.6898	14.8772	13.6797	10.4164	5.1875	3.9735	4.1412	2.4754
2002	2.4686	1.7389	1.5425	4.6709	14.7174	24.1134	18.0395	7.9272	6.035	5.7845	3.3741	2.3118
2003	1.8691	1.6078	1.9686	5.3317	9.9075	16.7132	11.8549	7.2896	4.2155	6.0972	4.0514	2.2392
2004	2.0129	1.6441	2.1458	6.3253	11.759	13.9372	10.3334	6.7755	8.3307	6.086	6.3383	4.5377
2005	4.7601	5.3257	4.6319	6.1387	14.6379	15.825	13.4983	7.5695	4.936	6.4809	5.114	3.3298
2006	3.7895	2.3828	2.1802	4.9596	11.975	15.2937	10.0526	6.0817	3.5821	2.4739	3.646	2.3029
2007	2.052	1.7728	3.8005	7.1937	14.7234	21.441	16.3503	8.7238	5.2747	6.2675	6.2268	3.7256
2008	2.5056	2.1214	2.2702	2.8614	16.035	18.6494	13.3263	8.8266	6.137	4.0539	4.5472	2.952
2009	2.7367	2.0092	2.0411	5.0775	12.4969	17.1314	11.7012	7.4779	4.6993	3.2789	4.0081	2.5661
2010	2.6553	1.9596	2.7171	4.6267	9.1999	13.9968	11.0117	6.9759	4.8652	5.279	3.4843	2.7458