1994

3.6

1963

7.1

1967

6.6

1974

6.4

1981

6.5

2005

5.6

2006

7.0

2006

6.6

1973

5.1

2019

3.3

2007

6.1

1995

6.0

1983

6.0

2014

0.0

2002

7.5

2004

7.3

2007

7.4

2002

5.5

2006

5.3

1997

6.2