Year Percent change (Units) 2001 95.477 2002 30.353 2003 -52.901 2004 -30.678 2005 -6.268 2006 6.146 2007 -32.409 2008 -15.705 2009 -6.722 2010 0.245 2011 -15.386 2012 21.015 2013 -3.510 2014 8.608 2015 22.503 2016 7.759 2017 -6.148 2018 -16.854 2019 -20.352 2020 -60.764 2021 -78.078 2022 60.479 2023 39.231 2024 26.886 2025 23.967 2026 5.654 2027 1.933 2028 2.128 2029 2.313