Year annual % growth 1971 7.042664872894846 1972 9.36621667909452 1973 14.995956159445328 1974 14.312216099206921 1975 5.1517575165568275 1976 1.6979108575177406 1977 2.1793796903865683 1978 3.2272655966314687 1979 6.217665443947553 1980 13.54383412526417 1981 -0.7826335184333004 1982 -15.782746053422542 1983 -20.258905505276047 1984 2.018095719662199 1985 13.261159688531237 1986 -0.37167450354461096 1987 3.5134007119672788 1988 0.4533145053679135 1989 -0.8562840853823701 1990 -2.7312274716200733 1991 8.187700576897214 1992 6.012237503744643 1993 7.197388482295835 1994 15.263398783387075 1995 -8.006069938899017 1996 6.62655256832511 1997 11.502391622349279 1998 3.317854600144017 1999 -7.340116606806816 2000 5.233216527565318 2001 -4.083751463723246 2002 -4.941417644912747 2003 1.6522373103914134 2004 10.369932663428145 2005 2.5932229893564624 2006 10.116115734887217 2007 12.964998530501276 2008 10.545906055789047 2009 -14.691805627618365 2010 19.964779071306154 2011 8.925530120326798 2012 -1.2556989914142207 2013 3.10603974811589 2014 -1.2468004167738371 2015 -6.060519234158164 2016 -6.095054969615035 2017 3.8468529419983355 2018 0.6464517534788143 2019 -3.1183787631545954 2020 -12.748070010849773 2021 19.26719379559026 2022 6.138788214927075 2023 -0.010019193725398168