Year	Percent change
1993	874.622
1994	307.634
1995	197.471
1996	47.742
1997	14.767
1998	27.675
1999	85.742
2000	20.776
2001	21.461
2002	15.783
2003	13.666
2004	10.887
2005	12.683
2006	9.679
2007	9.007
2008	14.108
2009	11.654
2010	6.854
2011	8.443
2012	5.068
2013	6.763
2014	7.824
2015	15.532
2016	7.052
2017	3.674
2018	2.878
2019	4.99
2020	4.52
2021	4.2
2022	4.1
2023	4
2024	4