Year	Percent change
1993	109.2
1994	35.9
1995	25
1996	17.6
1997	8.074
1998	4.295
1999	2.114
2000	2.633
2001	2.526
2002	1.963
2003	2.94
2004	6.187
2005	6.89
2006	6.571
2007	10.081
2008	15.253
2009	3.259
2010	-1.224
2011	4.222
2012	2.285
2013	0.011
2014	0.69
2015	0.213
2016	0.099
2017	2.894
2018	2.554
2019	2.427
2020	2.426
2021	2.116
2022	2.063
2023	2.098
2024	2.084