1991

7.3

2001

7.9

1997

5.8

2003

7.2

2006

6.6

2000

6.3

2001

7.8

1995

6.7

1973

6.9

1965

7.4

2018

0.0

2019

6.7

2000

7.0

2007

7.2

2022

9.3

2014

6.7

2007

6.5

1957

7.2

2006

4.9

2006

6.2