1974

6.5

1977

7.7

2025

5.8

2007

6.4

1997

7.1

1984

7.5

1985

7.7

1984

7.2

1987

6.5

1985

8.3

2000

7.3

1982

6.7

2022

6.1

1995

6.0

1990

6.9

2005

7.2

2023

7.1

2000

0.0

2010

6.4

2007

5.7