1998

7.0

6.6

1965

6.7

6.6

1966

6.5

2013

6.5

1991

6.2

2013

5.8

2005

5.5

2020

6.7

2005

6.8

2006

6.8

1972

6.5

2011

6.1

2017

6.9

2006

6.0

1993

6.2

2016

6.1

2014

5.7

2011

6.9