Year	Percent change
1980	10.066
1981	7.946
1982	7.083
1983	1.297
1984	2.433
1985	3.5
1986	5.435
1987	5.498
1988	4.995
1989	2.792
1990	0.604
1991	3.4
1992	6.383
1993	5.273
1994	5.699
1995	4.33
1996	2.976
1997	2.966
1998	1.994
1999	2.1
2000	1.348
2001	2.8
2002	2.918
2003	3.119
2004	5.041
2005	6.195
2006	9.285
2007	11.128
2008	12.272
2009	1.562
2010	0.878
2011	0.877
2012	0.662
2013	1.101
2014	2.346
2015	4.07
2016	1.617
2017	1.967
2018	3.08
2019	2.135
2020	2.056
2021	2.093
2022	2.114
2023	2.086
2024	2.225