Year annual % 1990 1.55975130923443 1991 3.11704954082228 1992 2.4957407667155 1993 1.59750862742143 1994 2.06273353612039 1995 2.06462349671411 1996 1.04023440661661 1997 2.64279189663814 1998 2.0807336761725 1999 1.28336999636159 2000 3.42036982108445 2001 4.18485489972578 2002 3.77054132736822 2003 2.17027931585601 2004 1.20404059769723 2005 1.98873995492572 2006 2.56110638417375 2007 2.07220572994835 2008 2.30632549844012 2009 0.220701610642962 2010 0.940413731811219 2011 0.193652086824386 2012 1.44610956661077 2013 1.27998705426134 2014 0.253185732004795 2015 0.772727976651382 2016 0.454667288773308 2017 1.26070715808579 2018 2.43709074520527 2019 3.03273379248688 2020 1.92857201636885 2021 2.92451387658699 2022 5.53522393876365 2023 7.75534281629842