Year	gross (GPI)
2005	1.23287999629974
2006	1.21872997283936
2007	1.23039996623993
2008	1.24600994586945
2009	1.24968004226685
2010	1.24909996986389
2011	1.24075996875763
2012	1.23072004318237
2013	1.2251900434494
2014	1.24599003791809
2015	1.25629997253418
2016	1.26592004299164
2017	1.28409004211426
2018	1.29551994800568
2019	1.33153998851776
2020	1.34396004676819
2021	1.35613000392914
2022	1.37272000312805