Year annual % growth 1971 4.575277714688667 1972 5.944906201338739 1973 5.4538030805367725 1974 1.312637823596134 1975 2.442827424646481 1976 4.949363724256628 1977 3.7120001314827107 1978 4.016499554432201 1979 3.7153056625374887 1980 2.358581934828166 1981 1.3704151786250662 1982 1.5363430803666773 1983 3.1242657598362626 1984 3.3517137037174507 1985 3.6510916923917875 1986 4.076872168802197 1987 3.3807679939475292 1988 3.912093451027431 1989 3.392556203364734 1990 3.254620291210415 1991 1.4670676307233919 1992 2.770323398791618 1993 2.066960990081654 1994 3.0866013383132724 1995 2.893129978845522 1996 3.6696409244165125 1997 3.3957992133501307 1998 3.182149231049962 1999 3.9599770365148004 2000 4.353521576358418 2001 2.6139673244137924 2002 2.526505010716363 2003 2.768479830855682 2004 3.7539775538258056 2005 3.89893513862458 2006 3.6210763776669097 2007 4.018911038470762 2008 1.826797522978893 2009 -0.25387312116274074 2010 3.2901220003675604 2011 3.1557895357648107 2012 2.4604865045131135 2013 2.694119433625545 2014 2.90745202724419 2015 2.950655951051502 2016 2.972679880103499 2017 3.50905492863194 2018 3.243323538804958 2019 2.5489141864578784 2020 -4.562356837313047 2021 7.39634911270781 2022 3.7847756196490536