2008

7.7

2009

8.3

1993

5.6

2000

5.0

2007

8.0

1977

7.7

2006

6.9

2020

6.7

2013

6.8

1993

8.0

2020

7.3

2004

7.6

1985

7.5

2017

6.4

2013

7.5

2004

7.8

2013

7.9

2017

7.6

1993

6.8

2008

7.7