Year	Per 1000 Births
1921	38
1931	29.9
1937	25.6
1941	30.7
1951	48.1
1957	60.2
1961	58.2
1971	40.1
1981	26.4
1985	23.7
1986	23.5
1987	23.2
1997	20.09
1998	19.07
1999	18.04
2000	17.02
2001	16
2002	14.98
2003	14.77
2004	14.57
2005	14.36
2006	14.16
2007	13.95
2008	13.41
2009	12.88
2010	12.34