1996,0 9,32
1997,0 9,04
1998,0 9,65
1999,0 9,57
2000,0 8,96
2001,0 9,2
2002,0 9,33
2003,0 9,63
2004,0 9,54
2005,0 9,53
2006,0 9,15
2007,0 9,88
2008,0 9,19
2009,0 9,27
2010,0 9,59
2011,0 9,64
2012,0 9,6
2013,0 9,56
2014,0 9,53
2015,0 9,5
2016,0 9,47
2017,0 9,44
2018,0 9,41
2019,0 9,39
2020,0 9,37
2021,0 9,35
2022,0 9,33
2023,0 9,31
2024,0 9,3
2025,0 9,29