Year	gross (GPI)
1970	0.0102000003680587
1971	0.0558300018310547
1975	0.0625099986791611
1977	0.25424998998642
1981	0.0838799998164177
1983	0.987689971923828
1998	0.934360027313232
1999	1.01686000823975
2000	0.889739990234375
2017	1.48831391334534
2018	1.49207580089569
2019	1.42332756519318
2020	1.2411116361618
2021	1.49985146522522
2022	1.51250994205475