2020

6.5

1996

6.5

2007

6.5

2008

8.5

2001

7.3

1964

7.1

2016

7.2

1970

7.1

1999

3.5

1982

5.7

1986

6.1

2007

10.0

2007

10.0

2002

6.8

2005

5.3

2009

6.6

1994

7.5

1997

6.1

2000

0.0

1980

6.6