1985

6.9

2018

6.5

2015

6.7

2020

6.5

2023

6.9

2024

6.0

2011

6.4

1999

6.8

1993

6.5

2018

6.3

2020

7.3

2008

6.7

6.6

1992

6.4

2020

6.4

2015

6.6

2023

6.4

2011

6.6

1980

6.2

1993

6.5