Year	annual %
1982	-6.52430090131074
1983	-10.8184521242346
1984	-1.35231755619233
1985	5.56992920935902
1986	-0.669710152777569
1987	2.40291290811521
1988	9.70177155620983
1989	-0.731569099078243
1990	11.1158893379533
1991	0.522369182197252
1992	3.64961515339365
1993	-3.74256504400893
1994	-0.339616268416947
1995	1.1278168823704
1996	4.36593177935517
1997	3.30629905168041
1998	2.17707145871624
1999	2.38165775311697
2000	-1.1011666443943
2001	9.16431867231277
2002	15.1802718118304
2003	6.13072960220353
2004	8.45803886232987
2005	5.95696732635827
2006	11.9801097148927
2007	3.65692938171374
2008	6.80715587239555
2009	7.34110874102743
2010	7.65569750760167
2011	5.51796681944754
2012	4.65380630205092
2013	6.86328646894027
2014	8.09975554632889
2015	3.54399082799814
2016	-1.11933229823694
2017	0.0784266511206795