Year	Percent change
1989	18.1
1990	33.4
1991	32.2
1992	21.6
1993	21.1
1994	21.2
1995	28.3
1996	19.757
1997	18.443
1998	10.306
1999	11.179
2000	10.073
2001	6.818
2002	4.822
2003	5.657
2004	5.523
2005	3.338
2006	6.538
2007	7.374
2008	3.502
2009	5.555
2010	4.673
2011	4.07
2012	4.992
2013	0.416
2014	-0.927
2015	0.889
2016	1.844
2017	2.14
2018	2.749
2019	3.451
2020	3.04
2021	2.988
2022	3.04
2023	2.989
2024	3.041