Year	%
1984	61.59452000256311
1985	57.70064081760946
1986	78.01902672330836
1987	102.05517554836537
1988	63.042042802200925
1989	61.924006481513565
1990	58.87767521131262
1991	47.08663841788876
1992	51.7542421796152
1993	61.22806507666783
1994	66.57093190962996
1995	70.07736313944697
1996	77.38357601156932
1997	81.32802162947024
1998	90.17093993865376
1999	118.94004071797178
2000	189.14048444945897
2001	145.8257995018627
2002	148.3556004131139
2003	108.67988834410149
2004	113.36728564754236
2005	145.13018675622467
2006	149.57106075234046
2007	202.95013543621656
2008	383.2675292923107
2009	213.84874228070518
2010	193.14703762815523
2011	241.95331537096712
2012	162.08231156197246
2013	131.57989231426495
2014	141.55077130548264
2015	158.68620325438442
2016	92.33200589390383
2017	111.8344139804331