Year	Total
1991	217.5
1992	211
1993	207.3
1994	190
1995	248.7
1996	230.3
1997	217.4
1998	252.3
1999	269.6
2000	286.4
2001	295.7
2002	298.1
2003	316.9
2004	323.2
2005	323.8
2006	313.1
2007	332.4
2008	323.5
2009	328.6