1979

6.1

2013

4.0

2004

7.3

1997

7.5

1997

4.5

2008

9.0

1980

7.3

2004

5.3

2002

6.1

1987

7.8

2021

0.0

2010

5.6

2009

8.0

1983

6.9

1984

6.9

2003

6.9

1974

8.8

2020

7.0

2006

7.2

1992

6.0