Year	Index (Units)
2002	31.263
2003	42.413
2004	49.351
2005	54.566
2006	58.269
2007	63.327
2008	80.057
2009	74.604
2010	76.229
2011	85.227
2012	90.717
2013	97.417
2014	101.970
2015	101.296
2016	105.736
2017	110.998
2018	111.693
2019	114.264
2020	120.671
2021	130.038
2022	143.822