Year Percentage Storage In Use
2004 98
2005 99
2006 99
2007 97
2008 100
2009 98
2010 95
2011 100
2012 91
2013 100
2014 100
2015 100
2016 100
2017 100
2018 99
2019 98
2020 98
2021 99
2022 96
2023 99