Year	%
1984	55.55696171802036
1985	52.80903301103741
1986	65.2709560552157
1987	91.07915865548674
1988	64.88143295256504
1989	60.70750172708019
1990	70.06277805961678
1991	45.66454524634746
1992	46.394826466447554
1993	53.17005869309664
1994	59.30562002685216
1995	57.317029009079725
1996	61.320964743738706
1997	77.93975263167788
1998	89.21988907786958
1999	95.26834878835649
2000	146.5665406423578
2001	124.06691854317565
2002	122.62097718781511
2003	92.79644989652297
2004	96.75930227510814
2005	112.39116047388983
2006	118.29433018624013
2007	158.18718297704697
2008	272.17692178010026
2009	148.91368677890912
2010	135.56060639372626
2011	165.07289557444582
2012	113.94006248522842
2013	98.00831659425779
2014	108.77761490869737
2015	125.64853748344142
2016	84.16268959582113
2017	93.19602269322992