Year Percent (Units) 2000 0.002 2001 0.002 2002 0.002 2003 0.002 2004 0.002 2005 0.002 2006 0.002 2007 0.002 2008 0.002 2009 0.002 2010 0.002 2011 0.002 2012 0.003 2013 0.003 2014 0.003 2015 0.003 2016 0.003 2017 0.003 2018 0.003 2019 0.004 2020 0.005 2021 0.005 2022 0.004 2023 0.003 2024 0.003 2025 0.003 2026 0.003 2027 0.003 2028 0.003 2029 0.003