Year	Percent
1990	104.59605
1991	82.20136
1992	106.46694
1993	88.28407
1994	86.65955
1995	83.75498
1996	80.23699
1997	82.4414
1998	39.11485
1999	42.85731
2000	45.57651
2001	51.3144
2002	49.31675
2003	54.84867
2004	43.44451
2005	29.61457
2006	33.43175
2007	39.56192
2008	22.24909
2009	30.96003
2010	28.88207
2011	20.28348
2012	20.42693
2013	20.07167
2014	14.08204
2015	16.641
2016	14.47342
2017	15.00061
2018	11.22322
2019	8.76899
2020	8.89266
2021	9.15646