Year	%
1976	4.3766513998473515
1977	3.7258685576580164
1978	4.892722059259552
1979	14.734988070187509
1980	16.062554993603996
1981	10.70322836235892
1982	5.07760856310888
1983	6.47546311229276
1984	7.077775107573984
1985	9.642835292369963
1986	8.776124342973533
1987	14.108560114124149
1988	9.752363378540275
1989	12.061923079032365
1990	20.963408203373167
1991	17.412701859533037
1992	31.438822649232108
1993	26.45091880790927
1994	41.31821083417099
1995	32.47955869640354
1996	20.81290541779195
1997	41.67577349146554
1998	45.62162486333325
1999	32.09569047834992
2000	61.471776089919324
2001	39.169377747054796
2002	38.43695428641131
2003	35.81828173299785
2004	60.14340782509567
2005	48.303355202216075
2006	53.856321338063665
2007	87.98374039031623
2008	146.58663684976403
2009	127.17435719309974
2010	120.84413773657452
2011	115.78551068232403
2012	84.17059543583402
2013	115.2963448526221
2014	127.11654294323273
2015	331.9158411223041
2016	186.70342557176681
2017	142.78706949850442
2018	149.78008060282846
2019	150.31672961082873
2020	191.52484555856546
2021	213.58032388985683
2022	210.05889018988472