Year annual % 1990 14.0074398272592 1991 106.309982268478 1992 476.51575086326 1993 917.783468411763 1994 2175.97895508759 1995 1825.49514900731 1996 4800.53164415744 1997 95.4530221791129 1998 39.3593483252693 1999 557.501113091215 2000 418.018991534099 2001 106.352125501451 2002 142.4782 2003 93.9265669067308 2004 33.4435947900255 2005 42.3742492617284 2006 17.1156651448542 2007 4.30843221207182 2008 19.3657735558326 2009 -16.7621402901592 2010 32.2704691224412 2011 31.7714601558986 2012 7.25574990943825 2013 2.83972412637765 2014 3.56088477205805 2015 -3.51838534598478 2016 21.7743125582849 2017 22.6144365241349 2018 28.1670932554891 2019 19.1870038271785 2020 10.7631052824799 2021 38.8237218374918 2022 13.7098475207842 2023 17.6477569319598