Year	Per 1000 Births
1990	25
1991	25
1992	25
1993	25
1994	25
1995	25
1996	24.6
1997	24.2
1998	23.8
1999	23.4
2000	23
2001	22.6
2002	22.2
2003	21.8
2004	21.4
2005	21
2006	20.6
2007	20.2
2008	19.8