Year annual % 1990 11.8587057699314 1991 8.54018289662375 1992 14.5672851392356 1993 9.98991652376216 1994 38.9921305701247 1995 49.0361191268476 1996 19.7608163868213 1997 4.49197342415518 1998 6.2099695419688 1999 7.18914294704696 2000 11.5703529669413 2001 7.9169448389373 2002 16.498525534897 2003 -1.70400479873007 2004 13.9558018033899 2005 18.3638246481935 2006 10.7656371604386 2007 10.287966315995 2008 7.48630027641002 2009 6.929159085308 2010 10.2185410293303 2011 10.3861871358875 2012 5.46617486333369 2013 5.4523024549118 2014 6.7317708095171 2015 6.5037166915161 2016 8.96008072992041 2017 4.96153975601543 2018 8.29799331094843 2019 6.52209064077279 2020 4.31114513583488 2021 6.64074341609775 2022 8.33090398854289 2023 8.9519306407775