2011

9.5

2002

5.9

2006

6.0

1995

6.1

1988

5.7

1967

5.2

1998

5.9

2003

6.3

1990

6.3

2004

5.3

2006

6.4

1993

6.6

1985

6.5

2001

5.8

2019

3.3

2006

4.2

1993

6.5

2007

3.9

2004

6.2

1999

5.8