1984

6.6

1980

7.1

2021

7.4

2009

4.7

1973

5.7

1976

4.9

5.0

6.4

1988

6.2

2014

6.9

2009

4.0

1987

5.3

2003

5.7

2015

6.1

1975

4.5

2022

6.9

1956

6.7

1976

5.7

2008

4.8

2010

6.2