Year annual % 1982 10.9704641350212 1983 9.8859315589355 1984 8.65051903114184 1985 3.50318471337575 1986 3.38461538461534 1987 5.65476190476196 1988 7.8873239436618 1989 10.1827676240209 1990 10.4265402843602 1991 11.1587982832617 1992 9.65250965250966 1993 8.80281690140857 1994 8.73786407766985 1995 9.07738095238091 1996 6.27557980900412 1997 5.77663671373521 1998 2.91262135922399 1999 -4.00943396226445 2000 -3.68550368550369 2001 -1.65816326530609 2002 -2.98313878080415 2003 -2.67379679144394 2004 -0.274725274725253 2005 0.826446280991827 2006 2.00025160397534 2007 2.03502713369511 2008 4.30315484104921 2009 0.579441418472608 2010 2.29289088604673 2011 5.3052489299392 2012 4.05390950903844 2013 4.33799342105267 2014 4.42364532019699 2015 2.99084819322581 2016 2.40930743862224 2017 1.49387243939522 2018 2.40613432046534 2019 2.88320853773996 2020 0.2509620210808 2021 1.56875834445922 2022 1.88136707196853 2023 2.09660511249089