Year annual % growth 1991 4.56360307677086 1992 2.85244816096899 1993 2.1754917143226464 1994 2.3800708122985554 1995 4.6396442523968915 1996 0.25933485576665305 1997 4.59649892699592 1998 6.366129531453055 1999 2.4770175972366673 2000 2.8928685620104773 2001 6.116314456789397 2002 3.8327618003681607 2003 5.9440602021108475 2004 6.374646862820697 2005 6.2684578511722435 2006 6.772014828736488 2007 8.16229226778185 2008 6.791047604148815 2009 4.94973658767006 2010 5.86852817121364 2011 4.66680482676685 2012 4.433885962516399 2013 6.983065190968347 2014 5.798365514509541 2015 3.1483627548908544 2016 3.6510314056082933 2017 3.8111977720741947 2018 4.415493555452613 2019 4.905805915732131 2020 -0.584222953869542 2021 2.473143550351736 2022 4.789834099947839 2023 3.999991338434512