2006

5.5

2007

5.6

1997

6.0

1963

6.7

1967

4.8

2004

7.1

2006

7.6

2005

6.2

1987

7.5

1990

6.1

1985

6.6

2009

6.6

2025

9.0

2004

6.0

2020

5.7

2017

7.1

2017

5.7

1998

7.2

2000

6.5

1958

6.6