Year % 2001 51.36524571219161 2002 73.53161756726584 2003 61.66275297413342 2004 53.60702869166587 2005 38.272148366668794 2006 33.15874090255347 2007 32.46860155312623 2008 34.01078146056355 2009 45.71684380752413 2010 44.054424076885276 2011 34.913785183744615 2012 31.530222918266915 2013 27.111039557306565 2014 25.294053687584313 2015 26.246077609881546 2016 28.323830973355157 2017 30.720935580085367 2018 29.509520658183234 2019 29.62103755430356 2020 28.237092944855174 2021 23.779706427436267 2022 18.696917692774022 2023 20.268949291536345