1993

6.6

1980

5.6

2014

5.5

2006

5.4

2006

6.7

2022

6.0

2025

7.1

2017

6.5

1993

7.8

1981

6.2

1982

5.9

1984

6.1

1985

5.3

2001

6.8

1987

6.8

1989

6.6

1997

5.9

2024

4.3

2008

6.6

1986

6.3