Year % 2005 0.9338169 2006 0.9338169 2010 2.782797 2011 2.764727 2012 2.755692 2015 3.202044 2016 3.184345 2017 3.182705 2018 3.182705 2019 3.173456 2020 3.186597 2021 3.212878