Year	Age
1990	60
1991	60
1992	60
1993	160
1994	350
1995	750
1996	1800
1997	1600
1998	1500
1999	1600
2000	1500
2001	1600
2002	1400
2003	1500
2004	1700
2005	1800
2006	2000
2007	2200
2008	2300
2009	2400
2010	2500
2011	2700