Year	Per 1000 Births
1921	26.6
1922	26.2
1923	26.5
1924	27.9
1925	29.1
1926	29.2
1927	29.9
1928	30.6
1929	29.4
1930	29.3
1931	27.2
1932	25.9
1933	25.6
1934	24.6
1935	24.6
1936	24.9
1937	24.6
1938	23.8
1939	24.3
1940	23.6
1941	24.3
1942	24
1943	24.3
1944	22.9
1945	23.8
1946	26.1
1947	32.1
1948	34.2
1949	35.8
1950	37
1951	38.6
1952	39.3
1953	38.8
1954	39.2
1955	41.8
1956	43
1957	44
1958	44.6
1959	45.2
1960	44.3
1961	47.4
1962	44.7
1963	45.9
1964	47
1965	47.5
1966	48.9
1967	48.4
1968	48.9
1969	49
1970	50.9
1971	55.5
1972	54.5
1973	49.1
1974	44.2
1975	40.1
1976	35.2
1977	32.1
1978	29.9
1979	28.5
1980	27.6
1981	28.2
1982	27.4
1983	26.6
1984	23.2
1985	22.8
1986	21.8
1987	20.6
1988	20.3
1989	20.6
1990	22.1
1991	22.1
1992	22
1993	20.9
1994	20.7
1995	20.4
1996	20.1
1997	19.8
1998	18.9
1999	18.5
2000	17.7
2001	17.7
2002	17.4
2003	16.3
2004	16.3
2005	15.6
2006	14.9
2007	15.4
2008	16.8
2009	16.4
2010	15.5