Year	Per 1000 Births
1997	16.31
1998	16.85
1999	17.39
2000	17.92
2001	18.46
2002	19
2003	19.2
2004	19.4
2005	19.6
2006	19.8
2007	20
2008	20.04
2009	20.08
2010	20.12