Year	%
1976	4.3766513998473515
1977	3.7258685576580164
1978	4.892722059259552
1979	14.734988070187509
1980	16.062554993603996
1981	10.70322836235892
1982	5.07760856310888
1983	6.4754631122927595
1984	7.077775107573984
1985	9.642835292369963
1986	8.776124342973533
1987	14.108560114124149
1988	9.752363378540277
1989	12.061923079032365
1990	20.963408203373167
1991	17.412701859533033
1992	31.43882264923211
1993	26.45091880790927
1994	40.336851499677195
1995	31.55747240160192
1996	20.7104553549658
1997	42.77907061506689
1998	45.194545480489694
1999	34.52942541653354
2000	63.09366826269771
2001	62.64595857352869
2002	51.0863603451344
2003	46.650691243620926
2004	64.19884889414564
2005	56.587441000136664
2006	58.32892826838546
2007	80.15724421388838
2008	140.0485206462591
2009	115.12749057072247
2010	107.23238097180018
2011	102.24361936848152
2012	76.42039365144662
2013	102.22404933580306
2014	110.932067465973
2015	280.1216191574157
2016	161.62358485949582
2017	124.04080957053976
2018	128.88980717631546
2019	129.75977440533697
2020	169.2787671718549
2021	186.84279564024192
2022	179.34694150919282