Year annual % growth 1991 2.716905528300174 1992 2.2265002306497905 1993 4.049273946339341 1994 -3.1961638682217455 1995 2.975190006263759 1996 5.137154179709739 1997 3.961052700891969 1998 3.9731525668765073 1999 2.0760766130780723 2000 -0.7703979965510257 2001 4.28296867831142 2002 1.2589797466843606 2003 4.171914058885818 2004 1.5426978283536528 2005 6.322002100746943 2006 4.841939809821923 2007 3.810424628551175 2008 4.8996589678944815 2009 4.472178066596456 2010 3.9712042649042303 2011 1.195566599608398 2012 5.449697287463678 2013 3.1502418485531223 2014 4.552301142496475 2015 2.1089968323498454 2016 3.022717130500638 2017 3.6586508858727314 2018 2.4297992208023373 2019 3.0886660343549153 2020 1.4309025849836132 2021 2.0476234234379405 2022 3.2654993390703595 2023 2.356307383315979