Year	%
1992	14.042083690163828
1993	9.673719997060456
1994	7.858574451606921
1995	7.059541831422928
1996	7.641335836618807
1997	5.451321158899756
1998	5.596542672595921
1999	4.437294487290472
2000	4.203435427643137
2001	3.1678038966522997
2002	4.180166695649146
2003	3.261802119410419
2004	3.836701047619358
2005	2.826218266146444
2006	1.8874493493171436