1989

6.7

1947

6.7

1997

7.7

1989

6.0

2005

7.1

2020

0.0

1999

7.6

1995

5.1

2007

6.5

2014

7.5

1992

7.2

2006

6.5

1991

6.7

2002

9.0

2017

6.6

2016

7.3

2016

4.6

1990

6.2

1985

6.5

1993

7.6