Year	gross (GPI)
2010	0.980417966842651
2011	0.995153605937958
2012	0.997241616249084
2013	0.990837812423706
2014	0.982852756977081
2015	0.981656908988953
2016	0.998440027236938
2017	0.998929977416992
2018	0.999279975891113
2019	0.9998499751091
2020	0.999549984931946