1982

7.5

2002

7.3

2003

8.3

1986

8.0

1980

8.2

1990

7.4

2025

7.0

2023

9.0

1991

8.3

2006

5.5

1999

7.5

1996

7.2

2002

6.7

1997

5.2

1993

7.0

1996

7.2

1998

6.6

1970

7.5

1978

6.7

1983

7.0