Year annual % 1982 1.9814211995503968 1983 0.9042502407676807 1984 -3.0875937696796285 1985 -1.448060909376693 1986 -9.172359950700653 1987 0.8097888222390281 1988 0.93098771431508 1989 7.147738827784437 1990 23.242925308562647 1991 93.31995108159018 1992 173.69068251644723 1993 318.89722533949794 1994 64.3193883238151 1995 60.272425427605185 1996 10.807572704592317 1997 21.672134233792335 1998 -1.9317969896455764 1999 10.881756980457055 2000 11.999691388141983 2001 10.448544658192958 2002 6.369687350659703 2003 10.236574534376828 2004 16.691473012895912 2005 20.098438776495527 2006 21.986771568091285 2007 11.628567651516647 2008 21.448753760998173 2009 1.8267036840065742 2010 39.17818797037407 2011 15.119265488084665 2012 12.7843788573595 2013 2.9078483378354463 2014 7.448836595065629 2015 0.609769217723354 2016 2.9931267605767715 2017 10.80044641174824 2018 7.960615864709993 2019 9.972213256664148 2020 3.706721769557049 2021 14.420065480745436 2022 17.71471241775015 2023 19.499424490816537