Year % (cumulative) 2012 33.269645690918 2013 33.4235992431641 2014 35.0156898498535 2015 35.4365005493164 2016 36.6167182922363 2017 37.573112487793 2018 38.4652786254883 2019 39.3615074157715 2020 39.7147636413574 2021 40.4751586914062 2022 41.732250213623