Year % gross 2000 59.3199005126953 2008 66.6427536010742 2010 64.7099380493164 2011 63.8984184265137 2012 59.6035499572754 2013 60.1619987487793 2014 62.0810012817383 2015 61.6189994812012 2018 43.5217895507812 2019 49.6796684265137 2020 53.75 2021 56.7039108276367 2022 53.3517990112305