Year	Per 1000 Births
1960	77.03
1970	56
1975	50
1980	55
1984	48
1991	50
1997	49.06
1998	50.02
1999	50.99
2000	51.95
2001	52.91
2002	53.87
2003	53.91
2004	53.96
2005	54
2006	54.04
2007	54.09
2008	52.57
2009	51.05
2010	49.53