1996

7.0

1999

6.0

2003

8.0

2015

0.0

2005

6.7

1990

7.1

1993

7.4

1966

8.2

1970

5.8

1987

6.0

2010

6.9

2020

7.4

1995

7.2

2006

7.2

2007

7.7

2014

5.7

2008

6.6

2014

0.0

2012

6.0

2020

6.0