1975

6.9

2015

8.4

1976

5.6

1984

7.2

2022

6.4

2008

7.0

2006

6.5

1988

6.3

2020

6.7

2004

5.7

1996

5.8

2014

8.4

1965

6.4

2017

5.6

2021

5.5

1966

6.5

2013

7.5

2010

6.1

2008

6.4

2022

7.9