Year	Percent change
1980	6.912
1981	6.208
1982	7.562
1983	6.788
1984	3.973
1985	8.708
1986	6.363
1987	5.811
1988	6.436
1989	4.808
1990	4.589
1991	5.127
1992	7.569
1993	2.097
1994	4.369
1995	5.062
1996	6.599
1997	1.703
1998	3.494
1999	4.182
2000	3.908
2001	1.967
2002	3.112
2003	4.726
2004	7.483
2005	8.958
2006	5.818
2007	5.537
2008	4.988
2009	0.361
2010	2.581
2011	3.624
2012	3.837
2013	3.683
2014	4.053
2015	4.058
2016	4.563
2017	5.373
2018	5.227
2019	2.905
2020	2.813
2021	2.781
2022	2.7
2023	2.62
2024	2.54