1982

7.6

2001

7.5

2004

7.3

2013

6.4

1999

5.5

2002

7.4

2009

6.0

1980

7.9

2006

6.4

2007

7.9

2004

7.5

2021

7.5

1983

6.9

1949

6.1

0.0

1984

0.0

2013

7.2

1970

4.6

2007

6.5

2019

6.0