Year	gross (GPI)
2000	1.22135996818542
2001	1.25019001960754
2002	1.24909996986389
2003	1.21092998981476
2004	1.2702499628067
2005	1.26498997211456
2006	1.22906005382538
2007	1.21897995471954
2008	1.22141003608704
2009	1.19904005527496
2010	1.19070994853973
2011	1.1693400144577
2012	1.16338002681732
2013	1.12347996234894
2014	1.12592995166779
2015	1.16095995903015
2016	1.20030999183655
2017	1.18002998828888
2018	1.19036996364594
2019	1.17741000652313
2020	1.22227001190186
2021	1.22358000278473
2022	1.24471998214722