Year	annual %
1981	3.6486485472307066
1982	0.7958400710932523
1983	-1.016802172285523
1984	-3.3074972023194533
1985	-0.2905953483221424
1986	3.6146555440662382
1987	-2.7494963794896137
1988	-3.2625223344682155
1989	6.923617285087502
1990	-11.187905298960956
1991	-27.566820836998204
1992	-6.62255121235502
1993	10.229949353134174
1994	8.969761658550908
1995	14.024495929868806
1996	9.780179879302935
1997	-10.361104970941057
1998	9.516484438222818
1999	13.608069123712909
2000	7.630022439370194
2001	9.314397139393549
2002	4.8504753341914295
2003	5.924211542457698
2004	5.956569596182405
2005	6.067882439357234
2006	6.572922982363622
2007	6.7872289358866595
2008	8.328108422924302
2009	4.053139863801519
2010	4.223083827210445
2011	2.8216424551400507
2012	1.5848728145101916
2013	1.1872343528619922
2014	1.9853880918038413
2015	2.516827054171273
2016	3.4802932167138607
2017	3.898112267466928
2018	4.2763115510529275
2019	2.5235408428056587
2020	-2.745238677571038
2021	9.92271370805365
2022	6.139016789870993
2023	4.633910226787634