1991

7.3

1995

7.2

2001

7.0

2006

7.9

2002

6.6

2004

6.4

2005

6.7

1991

6.3

1980

0.0

2016

6.5

2022

4.5

2010

0.0

2020

0.0

1927

8.1

1995

7.6

1985

7.7

2005

6.5

1982

7.9

1982

6.6

1988

7.9