1998

7.0

1992

6.6

1982

5.4

2020

5.0

2014

6.3

1964

5.8

1971

5.5

2004

6.2

1998

5.5

1993

5.5

1974

7.5

2001

7.3

1999

8.0

2008

5.1

1996

6.7

1995

6.4

2006

5.2

2008

6.2

2005

6.2

1997

3.0