1952

7.3

1991

6.8

1976

8.0

2011

4.7

2016

4.5

2021

4.8

2021

6.6

2021

6.8

1996

7.4

1991

4.9

2015

0.0

2015

7.0

2001

5.0

1973

5.3

1980

5.9

2017

5.7

1951

6.0

2007

6.8

2007

6.9

1977

7.4