1991

7.3

2008

6.6

1986

5.9

2020

6.0

2002

6.3

2003

5.5

1991

6.4

1937

6.0

2009

6.2

2008

5.8

1998

7.0

2019

8.3

2004

5.9

1994

6.8

1941

7.4

2014

7.3

1984

6.5

1992

7.5

1951

7.3

1916

0.0