2002

5.9

1999

4.3

2007

5.3

1987

1.0

1965

7.0

2011

2.0

1938

7.4

1983

4.6

1982

7.0

2019

7.8

1992

5.4

1969

7.5

2006

7.0

2007

5.8

2006

5.6

1938

6.0

1920

6.9

1960

6.1

2005

5.3

1999

6.0