Year	Age
1970	0.2
1971	0.3
1972	0.3
1973	0.3
1974	0.3
1975	0.3
1976	0.4
1977	0.4
1978	0.4
1979	0.4
1980	0.5
1981	0.5
1982	0.5
1983	0.6
1984	0.6
1985	0.7
1986	0.7
1987	0.8
1988	0.8
1989	0.8
1990	0.9
1991	0.9
1992	1
1993	1.1
1994	1.1
1995	1.2
1996	1.2
1997	1.3
1998	1.4
1999	1.4
2000	1.5
2001	1.6
2002	1.6
2003	1.7
2004	1.8
2005	1.8
2006	1.9
2007	2
2008	2.1
2009	2.1