1984

8.0

1964

7.4

1984

7.1

1999

5.5

1996

6.5

2014

7.0

2008

5.7

1967

7.3

2009

6.2

1989

6.2

2010

5.8

1997

5.0

2021

7.4

1996

6.1

2012

5.5

2016

6.7

2017

6.7

1996

5.7

1975

6.8

1994

5.3