Year % (cumulative) 1976 5.03634023666382 1992 10.8133897781372 2000 8.46761226654053 2001 14.0777196884155 2002 8.65337753295898 2005 9.64931774139404 2006 20.9168796539307 2007 12.5186729431152 2008 20.535120010376 2009 22.7695903778076 2011 15.1722717285156 2012 24.0322399139404 2013 14.825252532959 2014 12.9951934814453 2015 26.620979309082 2016 18.6036014556885 2017 20.6735992431641 2018 21.9419193267822 2019 31.0992298126221 2020 31.4803104400635 2021 27.1454563140869 2022 29.4184741973877