Year % 2001 9.452156304832672 2002 10.563983963943528 2003 11.156920249986097 2004 13.047213379487241 2005 12.260178971198608 2006 13.430074380003152 2007 14.696098998736387 2008 10.650265450780296 2009 9.739019519999573 2010 11.25706225883963 2011 11.16500483600409 2012 13.382343190132659 2013 11.80002456820239 2014 13.486037473274791 2015 26.06946346595272 2016 24.58376259454727 2017 22.424729158459623 2018 22.386538612831647 2019 18.110894234299316 2020 29.226252894701926 2021 27.875235036134484 2022 26.097712103717747 2023 27.202010690320545