Year	per person
1900	7.853
1901	7.78
1902	7.911
1903	7.761
1904	7.741
1905	7.903
1906	8.096
1907	8.179
1908	7.778
1909	7.885
1910	8.061
1911	8.232
1912	8.325
1913	8.602
1914	8.613
1915	9.245
1916	9.413
1917	9.477
1918	9.544
1919	8.514
1920	7.951
1921	7.761
1922	8.106
1923	8.321
1924	8.603
1925	8.994
1926	8.629
1927	9.292
1928	9.365
1929	9.621
1930	9.512
1931	8.983
1932	9
1933	9.226
1934	9.803
1935	10.14
1936	10.55
1937	10.87
1938	10.96
1939	10.95
1940	11.99
1941	13.08
1942	13.35
1943	13.54
1944	12.95
1945	12.34
1946	11.79
1947	11.55
1948	11.79
1949	12.16
1950	12.13
1951	12.45
1952	12.4
1953	12.84
1954	13.32
1955	13.76
1956	13.86
1957	14.02
1958	13.93
1959	14.4
1960	15.11
1961	15.48
1962	15.5
1963	15.99
1964	16.73
1965	17.05
1966	17.28
1967	17.57
1968	18.2
1969	18.45
1970	18.82
1971	19.13
1972	19.74
1973	21.02
1974	20.73
1975	20.71
1976	21.18
1977	21.65
1978	22.43
1979	23.02
1980	22.61
1981	22.29
1982	22.65
1983	23.43
1984	23.99
1985	24.6
1986	29.52
1987	31.97
1988	35.23
1989	37.09
1990	38.07
1991	38.12
1992	38.05
1993	38.66
1994	39.82
1995	41.13
1996	43.88
1997	47.21
1998	53.1
1999	59.83
2000	62.45
2001	65.21
2002	68.41
2003	72.07
2004	75.13
2005	78.84
2006	81.93
2007	86.94