2009

7.4

1988

6.5

1954

6.7

1994

6.2

2006

6.9

1978

5.9

2014

7.0

1966

6.1

1993

6.5

2012

5.7

1993

6.5

2002

7.1

1999

5.9

1985

7.2

2019

6.5

2016

6.1

1980

6.4

2011

7.3

1996

6.5

1989

6.3