Year % 2001 10.435223675754141 2002 7.479559213727079 2003 12.038340010492336 2004 18.29573419910319 2005 7.689425239059385 2006 16.397196638772122 2007 7.9158560771318065 2008 5.407397574066566 2009 11.449997573373677 2010 12.029810865929834 2011 8.537069143951275 2012 6.5060025181726715 2013 6.081913430501248 2014 10.536314388432062 2015 21.553960926806795 2016 26.34737664001316 2017 28.78585060334209 2018 33.05840201120469 2019 30.49118468628429 2020 43.01511150751465 2021 32.16440283991647 2022 30.114684574721913 2023 19.710285260208458