Year annual % 1990 30.2460376878581 1991 67.8943669411031 1992 64.981189489959 1993 49.058885355302 1994 23.2494807573282 1995 44.7300382185589 1996 39.2337134891055 1997 34.1381948265638 1998 10.340339577477 1999 -12.4222901416822 2000 -22.9323193806919 2001 3.762037471563 2002 3.37438322549465 2003 -0.570313383070598 2004 -5.48079612653402 2005 3.1144126416763 2006 -4.24338611417163 2007 5.99026578899323 2008 12.7627326829033 2009 -3.82520779040343 2010 5.21501553690263 2011 8.45292198734357 2012 -0.0272211587831066 2013 -0.932275244129343 2014 1.29755736927652 2015 14.5196629079078 2016 2.84072773699329 2017 10.3961209198976 2018 -2.53156124422603 2019 -3.45217236825675 2020 -1.00000832006856 2021 2.69999358181801 2022 7.30003423870163 2023 7.01063547256433