Year Percent (Units) 2000 0.010 2001 0.010 2002 0.010 2003 0.009 2004 0.009 2005 0.009 2006 0.010 2007 0.010 2008 0.010 2009 0.010 2010 0.009 2011 0.009 2012 0.009 2013 0.009 2014 0.009 2015 0.009 2016 0.010 2017 0.010 2018 0.010 2019 0.010 2020 0.009 2021 0.010 2022 0.010 2023 0.010 2024 0.010 2025 0.010 2026 0.010 2027 0.010 2028 0.010 2029 0.010