Year	%
1976	9.67741935483871
1977	5.29529112304736
1978	8.9768401522664
1980	34.4756374768375
1981	44.1327661528088
1982	30.1711843813099
1983	105.465990612687
1984	10.173836744764401
1985	9.422018348623851
1986	21.2043770512369
1987	39.8704840991238
1988	42.8454405573247
1989	45.456589291421594
1990	63.5407841255606
1991	58.6641483036027
1992	44.0964910213111
1993	56.61217162388169
1994	61.76264415969036
1995	26.524860411790858
1996	35.38202511705573
1997	44.89038758370221
1998	29.224753303192582
1999	23.042598421065094
2000	32.3716296918716
2001	18.84045869957881
2002	18.971904844071855
2003	16.22077172177573
2004	40.66480749863735
2005	47.28687257252363
2006	37.0621825910195
2007	36.22204447492862
2008	73.69057699611908
2009	45.576457207240296
2010	41.33476173940648
2011	46.6321809511885
2012	67.40723203744487
2013	42.77988538216801
2014	60.00415506649258
2015	47.87928915640516
2016	38.71044336649849
2017	28.79763310544701
2018	27.556546249034433
2019	12.822036725399157
2020	18.04621216522386
2021	20.430141510372405
2022	18.02890101288673