Year annual % 1971 4.31150286995998 1972 4.9742419405674525 1973 5.628447225079228 1974 0.8818742812783285 1975 -0.09443612039557081 1976 4.364833779080385 1977 2.937721803404017 1978 4.071661643026857 1979 2.6777184513485253 1980 0.30840562169368013 1981 -0.9384472950167151 1982 0.7628542023236662 1983 1.746653673997912 1984 2.2745473889779646 1985 2.3711024572993296 1986 4.884835536893846 1987 2.8663650878157654 1988 4.522111524385437 1989 3.8600330335309962 1990 4.285536012422725 1991 2.6896949649561464 1992 2.2041011753820783 1993 -0.3122153922231661 1994 2.0858390819153954 1995 2.5038045681382783 1996 1.8277927088355455 1997 2.6850028207144447 1998 3.2458749522729278 1999 3.1188624747275924 2000 2.76190906568317 2001 2.1175805227138937 2002 0.9993017803122513 2003 0.9365531973249119 2004 2.584199832138424 2005 1.468264150206906 2006 3.061715433502215 2007 2.8947285652040335 2008 -0.58211725845959 2009 -2.9339705755083685 2010 1.6224627273947902 2011 1.0090972901803212 2012 -0.8975315438177773 2013 0.19161970275287388 2014 1.620385007241552 2015 2.5348204653974307 2016 2.5434763717693443 2017 2.3167146627664152 2018 1.8075754750029631 2019 1.6599147412292012 2020 -6.149562119933208 2021 6.0048754796292485 2022 0.7219530533444782