Year annual % 1990 25.666049673664 1991 35.71544123657 1992 21.5091796494696 1993 21.2784550856639 1994 19.4910605451918 1995 26.7327889444513 1996 21.930280736456 1997 20.2607985778717 1998 13.7672389258277 1999 8.12026432054157 2000 9.58348091637275 2001 11.0465639891595 2002 8.09150583095244 2003 5.43344610640528 2004 5.09107072516386 2005 2.62703094651735 2006 3.65668643970305 2007 5.44367721666583 2008 4.80613866757824 2009 4.1990645514699 2010 2.53257045300049 2011 1.92872070289376 2012 2.89276167816158 2013 2.82053189026186 2014 3.6927260947232 2015 2.7757419080134 2016 1.3204719948326 2017 4.02970505144422 2018 4.847425391946 2019 4.78502518079389 2020 6.38947660567723 2021 6.43924810515087 2022 14.2313411581322 2023 14.7490051351556