Year Percent change 2005 0.186 2006 22.293 2007 5.136 2008 3.853 2009 18.311 2010 -5.592 2011 -0.972 2012 0.321 2013 -1.754 2014 9.987 2015 3.51 2016 8.215 2017 1.58 2018 3 2019 2.8 2020 2.25 2021 2 2022 2 2023 2 2024 2