2001

7.6

1974

7.9

1993

6.7

2005

7.0

1985

7.8

2015

6.9

2022

4.0

1938

7.4

1994

6.3

1988

7.5

1989

8.3

2001

5.4

2006

7.5

1955

7.6

1999

7.4

1986

7.9

1994

6.8

2002

6.7

1971

7.2

1994

7.0