Year annual % change 1990 -18.975305699523727 1991 11.508957782207286 1992 -10.577837074607588 1993 30.277600000000014 1994 16.98995068991138 1995 31.197539296523825 1996 35.957969677996246 1997 10.01239231213178 1998 7.64736761155802 1999 71.47010798751003 2000 -20.441959827531587 2001 -29.261283882042022 2002 -29.100941397006373 2003 60.51454935959391 2004 33.80714496016799 2005 9.101890700795812 2006 44.41243280995568 2007 -3.0644266782003826 2008 -53.18126604610983 2009 65.99983505583715 2010 32.56469374087223 2011 -18.5164658047037 2012 19.7495298439581 2013 23.9322834510286 2014 -8.58617833482405 2015 -1.57193368795521 2016 -1.46514407226561 2017 18.0370480220497 2018 -15.2732025467396 2019 23.1369131258477 2020 31.4651120170903 2021 15.9064600023185 2022 -35.079659770687