Year annual % 1996 3.7273013966894695 1997 1.6733927823005388 1998 -1.3285777820415632 1999 3.3718968612088673 2000 4.008461796859876 2001 2.8367803040337662 2002 3.374467105391531 2003 1.9374260421884344 2004 3.282685060530085 2005 4.088022906359498 2006 3.5747120326984856 2007 5.02852648219168 2008 2.5425107459105902 2009 2.271245061235433 2010 5.296621216961597 2011 5.561767060308824 2012 4.389172193522285 2013 4.323309824566721 2014 3.657649847039508 2015 3.974015642669343 2016 4.111363492969076 2017 4.907307622277784 2018 4.506614442430589 2019 3.330732923807062 2020 -3.8526640367159644 2021 6.914014077327678 2022 3.1390821803207274