Year Percent change 2005 36.959 2006 53.248 2007 30.821 2008 2.668 2009 -2.194 2010 2.445 2011 5.604 2012 6.089 2013 1.879 2014 2.236 2015 1.393 2016 0.525 2017 0.099 2018 0.367 2019 2 2020 2 2021 2 2022 2 2023 2 2024 2