2006

9.3

2007

6.7

1996

8.1

1983

7.4

1983

8.1

2021

5.4

2019

7.0

1975

7.3

2006

7.4

1993

7.1

2015

8.0

2009

8.1

2005

8.9

2017

7.0

1991

6.1

1998

5.9

2012

8.3

1998

6.8

1976

7.9

1999

6.7