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