Year	%
1977	28.708708708708702
1978	19.6056589060933
1979	34.0636039130898
1980	28.1928746618119
1981	13.181925613974798
1982	24.966594716826
1983	12.674115805495202
1984	21.636627658665798
1985	23.303026284119998
1986	15.036488091870801
1987	10.1528068653791
1988	167.391304347826
1989	12.3854315528774
1990	22.1494758387962
1991	24.4032361035854
1992	84.51122530620569
1993	112.95920968437201
1994	306.038972311431
1995	84.4372902869962
1996	70.0421884282209
1997	64.4817672359597
1998	57.495808774220905
1999	21.2402936707374
2000	19.9514870851107
2001	19.9556673855739
2002	7.05213927946412
2003	8.37131536218996
2004	11.2121608508871
2005	11.0479866695524
2006	6.6119855667813505
2007	8.48955040602655
2008	8.37533211745139
2009	3.30218015417228
2010	3.9818469126561
2011	5.63176187861392
2012	4.2684299257767195
2013	4.2130097868761
2014	5.85700119251026
2015	4.80954448261261
2016	5.32936562028847
2017	5.35915768753725
2018	9.9403
2019	7.5732
2020	8.8368
2021	6.2739
2022	15.0349