Year	Age
1990	11000
1991	12000
1992	12000
1993	12000
1994	12000
1995	12000
1996	13000
1997	13000
1998	13000
1999	13000
2000	13000
2001	12000
2002	12000
2003	12000
2004	12000
2005	12000
2006	11000
2007	11000
2008	12000
2009	11000
2010	10000
2011	9900