Year annual % 1961 1.762809540673322 1962 1.730569692402646 1963 1.651999056690962 1964 1.6403725519079915 1965 1.6743359802523807 1966 1.605929959245891 1967 1.4313680601035834 1968 1.3358957475557058 1969 1.4527985350586299 1970 1.534522538867128 1971 1.5937478646757968 1972 1.5250883262217747 1973 1.3370220246714728 1974 1.2891816994985112 1975 1.392778387750047 1976 1.2823115281864705 1977 1.086341779084709 1978 1.1030161646847603 1979 1.1756674540051124 1980 1.2712861116705574 1981 1.2389950863165935 1982 1.0817669911151735 1983 0.9955414181136115 1984 1.0064493852188443 1985 1.0676659117264855 1986 1.1497185539181076 1987 1.2228014349017637 1988 1.2265186598314277 1989 1.1725965866090853 1990 1.2551054608442933 1991 1.7227312038097506 1992 2.0373204299406424 1993 1.9381379490778603 1994 1.8080228169111572 1995 1.664066360649869 1996 1.5962735198780176 1997 1.6127322585082704 1998 1.6814295401444308 1999 1.6967049292820044 2000 1.7159221043894939 2001 2.0935812321597194 2002 2.2733141762488875 2003 2.012103460202466 2004 1.796942841275587 2005 1.5934688036883131 2006 1.3707367708082583 2007 1.2914136658509312 2008 1.404945287934817 2009 1.546387424797709 2010 1.4885841676316205 2011 1.317805474921001 2012 1.173607400310879 2013 0.9687086473180309 2014 0.9222278784882578 2015 0.9802962002441028 2016 1.0432171912923838 2017 1.0776861057997087 2018 1.036375039121553 2019 1.0760840670840992 2020 0.9466107065641475 2021 0.8871081290155785 2022 1.2919025644199271 2023 1.3183456482116755