Year	Index (Units)
1989	68.341
1990	78.845
1991	65.666
1992	62.690
1993	63.516
1994	93.337
1995	96.557
1996	97.351
1997	99.411
1998	99.955
1999	99.006
2000	100.783
2001	101.725
2002	102.154
2003	105.751
2004	105.237
2005	106.410
2006	105.694
2007	105.488
2008	111.370
2009	112.334
2010	113.106
2011	115.709
2012	118.216
2013	122.073
2014	124.194
2015	122.765
2016	127.762
2017	129.112
2018	137.185
2019	138.586
2020	140.738
2021	143.095
2022	150.798
2023	154.198
2024	157.593
2025	161.051
2026	164.707
2027	168.560
2028	172.569
2029	176.825
