1963

7.1

1973

8.0

1985

6.2

1993

6.1

1998

7.4

1999

8.4

2010

7.0

1994

8.3

1968

8.1

2002

7.8

1972

7.5

2025

7.1

1992

8.1

1961

8.0

2000

8.1

2008

6.6

2024

5.8

2017

6.0

1972

8.7

1931

8.1