YEAR	MEAN-TEMPERATURE
1899	9.99	
1900	15.37	
1901	14.89	
1902	14.94	
1903	9.99	
1904	15.13	
1905	9.99	
1906	14.47	
1907	9.99	
1908	9.99	
1909	9.99	
1910	9.99	
1911	9.99	
1912	9.99	
1913	9.99	
1914	9.99	
1915	14.95	
1916	16.00	
1917	15.20	
1918	9.99	
1919	9.99	
1920	9.99	
1921	9.99	
1922	9.99	
1923	9.99	
1924	9.99	
1925	9.99	
1926	9.99	
1927	9.99	
1928	9.99	
1929	9.99	
1930	9.99	
1931	9.99	
1932	9.99	
1933	9.99	
1934	16.14	
1935	15.27	
1936	15.80	
1937	16.19	
1938	15.53	
1939	15.55	
1940	9.99	
1941	9.99	
1942	15.33	
1943	9.99	
1944	9.99	
1945	9.99	
1946	16.12	
1947	15.45	
1948	15.52	
1949	15.47	
1950	16.53	
1951	16.39	
1952	15.90	
1953	15.42	
1954	15.17	
1955	15.13	
1956	14.94	
1957	15.38	
1958	16.10	
1959	15.55	
1960	16.14	
1961	16.60	
1962	14.83	
1963	15.19	
1964	15.47	
1965	15.39	
1966	16.44	
1967	15.76	
1968	15.82	
1969	15.69	
1970	15.57	
1971	15.90	
1972	15.54	
1973	15.54	
1974	15.89	
1975	15.76	
1976	15.27	
1977	15.91	
1978	15.05	
1979	15.75	
1980	14.94	
1981	15.19	
1982	15.80	
1983	15.93	
1984	15.40	
1985	15.67	
1986	15.82	
1987	16.27	
1988	16.64	
1989	15.83	
1990	15.87	
1991	15.54	
1992	16.11	
1993	16.20	
1994	16.66	
1995	15.73	
1996	15.83	
1997	16.05	
1998	16.23	
1999	15.95	
2000	16.62	
2001	16.74	
2002	16.15	
2003	16.25	
2004	15.95	
2005	15.69	
2006	15.71	
2007	16.75	
2008	16.26	
2009	16.81	
2010	16.35	
2011	16.37	
2012	16.46	
2013	16.54	
2014	17.52	
2015	16.11