Year annual % 1961 5.063994835951988 1962 3.9572664820495476 1963 3.1624704179471337 1964 3.04656689764451 1965 3.8341366814102855 1966 3.420406235479035 1967 1.5890553796199782 1968 2.0878359350886626 1969 4.208987949947769 1970 7.632434437760423 1971 7.621336524243532 1972 4.531857099815156 1973 6.299513718467438 1974 7.275290302616639 1975 5.666623538744673 1976 3.306194527643896 1977 3.100718202476301 1978 3.5458418966372847 1979 4.2781406559154505 1980 5.451189388786773 1981 4.1752387882334006 1982 4.581058531854396 1983 2.807938538847779 1984 1.989146341656749 1985 2.124725708369482 1986 2.999543114622824 1987 1.2796635538407202 1988 1.6904612769391747 1989 2.8790668272941247 1990 3.396643449906577 1991 3.0850797602741267 1992 5.306196641546592 1993 3.883663919942819 1994 2.05160802865106 1995 1.981324648525245 1996 0.6022795030491892 1997 0.2728163219741617 1998 0.688465401249033 1999 0.3431351415588324 2000 -0.4893890053275811 2001 1.3049949100786762 2002 1.3781258240974381 2003 1.321253523708748 2004 1.1155958666263928 2005 0.4052073318516136 2006 0.3972811548939035 2007 1.7702732069408142 2008 0.9093304223015224 2009 1.841891637763183 2010 0.6452757711218169 2011 1.0694837453494301 2012 1.4964888377983385 2013 1.9593916830244353 2014 1.8779398537491119 2015 1.8536788240880213 2016 1.3277522226954517 2017 1.50373898915133 2018 2.0074924413161312 2019 2.130309051482726 2020 1.8725856480559173 2021 3.019638073752674 2022 5.268325423701526 2023 6.628008068941284