Year	Age
1990	60
1991	60
1992	60
1993	60
1994	60
1995	160
1996	350
1997	350
1998	600
1999	1600
2000	2900
2001	4900
2002	7500
2003	10000
2004	13000
2005	15000
2006	16000
2007	17000
2008	18000
2009	19000
2010	20000
2011	20000