Year	annual %
1981	2.820938368298755
1982	1.9164728045925443
1983	-0.6452717296398731
1984	2.7367484963819493
1985	0.22917712844103733
1986	1.3454896153243254
1987	0.06383880020337074
1988	-5.389743836569039
1989	6.729684134269192
1990	26.188000659147036
1991	226.53785985625655
1992	59.57864938668928
1993	51.09105389647718
1994	72.70496823794878
1995	135.95561903317343
1996	62.96624432010685
1997	913.2130995807181
1998	33.951028562048066
1999	3.3191395941760646
2000	7.380837466691332
2001	6.117732791788043
2002	3.8483802414747856
2003	2.1894102270240836
2004	5.581557426213962
2005	6.594258587395913
2006	6.756474286285936
2007	11.051431708150176
2008	8.103456232020932
2009	3.938019325530888
2010	0.7641299995747204
2011	6.112829916733119
2012	1.1121789467451748
2013	0.07195151780290132
2014	1.3407833399348874
2015	2.9477458727089356
2016	3.3235597448132665
2017	4.813120484223262
2018	4.234605497922843
2019	5.239256553795784
2020	4.260105685885236
2021	7.134491718264584
2022	16.181955894845217
2023	7.510536601552431