Year annual % 1971 3.2500903476787357 1972 4.987419012713488 1973 4.604970635078544 1974 -0.2132315799708948 1975 1.586658335782488 1976 3.725785019038881 1977 2.8051645840126582 1978 3.2084639464213183 1979 2.696968345028793 1980 0.17929170651660797 1981 0.5852127176270301 1982 1.0203897440965477 1983 2.9011613471854503 1984 2.8610408348382066 1985 3.320379953680856 1986 3.5721085267068418 1987 3.1742600805653893 1988 3.693587593856293 1989 2.8635730850152328 1990 2.086583564340998 1991 0.2993529836726765 1992 1.95549314364294 1993 1.114250083716641 1994 2.397532771755934 1995 2.036869735073978 1996 2.364990848198829 1997 2.391611941073535 1998 2.7579837096527484 1999 3.7100502288924986 2000 3.4871634578597366 2001 1.9113384583256448 2002 1.6103673830692316 2003 1.7657771601596721 2004 2.3351611430372685 2005 2.4159807439890812 2006 1.9136778161874588 2007 1.8575215035664456 2008 -0.2676500849237442 2009 -1.667840230438287 2010 1.4767863080874264 2011 0.8982286939206858 2012 0.5759122820533378 2013 0.9498320210901596 2014 1.39647663162809 2015 2.0281703796255073 2016 1.6881231749470658 2017 1.912855596231509 2018 1.8254100712491237 2019 1.2258341837482618 2020 -5.336178993555606 2021 6.193420665286851 2022 3.2901138496264366