Year annual % growth 1991 0.7228518236727979 1992 2.6019925310150285 1993 3.0935873102871767 1994 5.250949400464222 1995 6.144957090857389 1996 3.5951683414683515 1997 4.87224014180596 1998 4.2510539342666505 1999 5.38840952976723 2000 4.112527850229483 2001 3.6041233080077433 2002 3.8926610513280195 2003 3.309359181192974 2004 4.084507188205194 2005 3.6579342080931667 2006 3.045645780681454 2007 4.328949876721538 2008 3.418646840625911 2009 2.119773160132027 2010 2.1963206693854147 2011 2.8435834660322854 2012 3.362438573292252 2013 2.4973343568481567 2014 2.2852841441127936 2015 2.6719541393216844 2016 3.501113090753009 2017 3.211370024818393 2018 2.9497459250730174 2019 3.3052295794757924 2020 0.3555206899657577 2021 2.3781255703175077 2022 5.118594974496958 2023 4.294229833088579