1986

6.7

1993

7.1

2003

5.7

2008

5.9

2011

5.0

2008

5.5

1982

6.5

2009

5.9

2005

5.1

1990

5.6

1995

6.7

2008

6.5

2021

6.0

2004

4.4

1943

0.0

1989

7.5

2021

4.1

1997

7.7

1991

5.9

1942

6.9