Year	per person
1800	1.237
1820	1.237
1939	5.385
1940	4.982
1941	4.948
1942	5.117
1943	5.106
1944	5.096
1945	4.806
1946	5.16
1947	4.383
1948	4.334
1949	4.947
1950	4.504
1951	4.471
1952	4.281
1953	4.289
1954	4.251
1955	4.33
1956	4.4
1957	4.487
1958	4.621
1959	4.494
1960	4.422
1961	4.515
1962	4.711
1963	4.717
1964	4.797
1965	4.943
1966	4.868
1967	5.042
1968	5.085
1969	5.145
1970	5.322
1971	5.407
1972	5.534
1973	5.795
1974	6.096
1975	6.312
1976	6.581
1977	7.124
1978	7.732
1979	8.399
1980	9.393
1981	9.944
1982	9.339
1983	8.805
1984	8.824
1985	8.914
1986	8.648
1987	8.769
1988	9.072
1989	9.33
1990	9.345
1991	9.309
1992	9.203
1993	9.304
1994	9.318
1995	9.469
1996	9.331
1997	9.314
1998	9.029
1999	8.834
2000	8.569
2001	8.52
2002	8.298
2003	8.396
2004	8.522
2005	8.553
2006	8.749
2007	9.157
2008	9.501
2009	8.891