Year annual % growth 1991 -0.8496701231134978 1992 0.21008874742007322 1993 -0.09948473461344065 1994 0.3320167023329219 1995 0.8160796129182586 1996 1.351725847024852 1997 2.731794547247077 1998 3.6551793098772265 1999 1.463566749310118 2000 4.667605102858147 2001 1.1396609880704176 2002 -0.20810552457459153 2003 0.2269848647134154 2004 3.4005025430737845 2005 2.3182477873004927 2006 3.8700643875333043 2007 4.013860768913986 2008 3.001430202400286 2009 0.152319837224141 2010 2.2072932124071087 2011 0.3860727985727408 2012 2.3276560524368364 2013 1.7914884137516367 2014 2.9452134154337273 2015 2.390983788104691 2016 2.1654005056777095 2017 0.4107455475304249 2018 2.052922042031298 2019 0.7200137503515833 2020 -1.4076905817824326 2021 2.5770278804719595 2022 1.653431649484645 2023 1.8363810938955396