Year	gross (GPI)
2000	1.13469004631042
2001	1.23763000965118
2002	1.25625002384186
2003	1.2971099615097
2004	1.36575996875763
2005	1.3449399471283
2006	1.33658003807068
2007	1.26628994941711
2008	1.1886899471283
2009	1.2119699716568
2010	1.18652999401093
2011	1.17783999443054
2012	1.20583999156952
2013	1.174919962883
2014	1.16532003879547
2015	1.16264998912811
2016	1.17441999912262
2017	1.1942800283432
2018	1.23022997379303
2019	1.22534000873566
2020	1.23538994789124
2021	1.24336004257202
2022	1.27816998958588