1992

6.6

1930

7.3

1929

7.5

2002

5.3

1993

6.3

1997

7.8

1968

7.2

2006

5.6

1945

7.6

2008

5.1

1993

4.6

1945

7.4

2007

5.1

2002

5.3

1993

5.9

2008

4.5

1986

7.2

1984

6.9

2003

4.3

1965

7.4