Year	%
2000	26.204335565677876
2001	25.945907279615845
2002	25.66330965819424
2003	25.560097096982584
2004	25.371271403805896
2005	25.10777344253953
2006	24.94164399062157
2007	24.654118310369768
2008	24.437179468056655
2009	24.244576173078286
2010	24.00514222068256
2011	23.82725558775582
2012	23.571590259841496
2013	23.332999688340518
2014	22.970651108347287
2015	22.6845618393445
2016	22.488540001723223
2017	22.228046695979412
2018	22.119942243925014
2019	21.980743602315364