2007

6.4

1998

6.0

2001

6.9

1992

7.4

1994

6.7

1946

8.3

0.0

2013

5.7

1991

6.1

2011

6.5

2000

6.3

2020

0.0

2020

3.3

2020

6.7

1971

4.2

2008

5.8

2013

0.0

1982

7.8

2000

6.8

2006

2.0