1990

6.2

2001

8.1

2006

7.5

1967

7.2

2003

7.1

1992

8.5

2006

6.8

1994

7.5

1996

8.1

2003

7.8

1966

7.3

1993

7.1

1988

6.9

2002

7.5

2012

7.9

2021

8.0

1995

5.0

2021

8.5

1967

7.3

2024

7.5