1992

7.5

2006

6.8

1997

7.4

1992

7.4

1980

7.0

2004

6.3

2007

7.2

1993

5.6

1999

6.8

1985

7.8

2022

0.0

1955

7.1

2001

7.4

1993

0.0

2010

6.8

1939

2.0

1998

8.3

1982

6.7

1971

5.8

1936

6.5