1938

7.5

1987

6.9

1994

7.3

2000

6.4

2006

6.7

2005

7.2

1982

6.9

2004

7.1

1963

8.1

2003

7.1

1997

4.6

1992

6.9

1967

7.7

1990

6.3

1989

6.8

1984

6.3

1934

7.8

2019

5.8

2006

5.1

2004

7.1