Year annual % growth 1981 3.6454985455615514 1982 4.6145085768391425 1983 5.897248161941349 1984 3.6306716888841635 1985 5.734584000985365 1986 4.829015765757674 1987 7.010744956466027 1988 1.542686110431731 1989 4.5013185951348476 1990 10.403405816003414 1991 -2.6496526993710035 1992 6.791925574541139 1993 0.12527296561637513 1994 5.7445767858165055 1995 9.476208892281662 1996 7.272806065869503 1997 8.038354409598597 1998 5.178642689601446 1999 10.599049892918202 2000 1.0033781087733757 2001 11.99837683484543 2002 1.8052387782594224 2003 5.188810339522391 2004 9.75420820431681 2005 12.128758223071785 2006 12.503672779712744 2007 15.451037261110486 2008 6.48600805532034 2009 3.8185888069152725 2010 8.880339672465666 2011 6.880136492993174 2012 4.698635681314144 2013 2.6720870354227486 2014 4.32474156971125 2015 7.682066127159587 2016 9.1518624302891 2017 7.904022443080265 2018 9.993999842367714 2019 2.6896172663381464 2020 -8.093066876196957 2021 12.037371739503229 2022 6.294418262439066 2023 7.596844410641722