2004

6.3

2006

5.4

2002

5.3

1916

6.6

1985

7.7

1997

6.8

2006

6.6

2014

6.0

2001

6.2

1973

3.7

1985

7.1

1990

6.9

2001

7.3

2003

7.1

2014

6.6

1992

6.6

1987

5.6

1963

7.4

1969

7.8

1967

6.7