2007

5.3

2006

5.6

2008

6.2

2018

6.8

1999

7.0

2007

7.3

2006

3.5

1959

7.1

2007

5.3

2009

5.9

1986

7.7

1989

7.2

1992

6.9

2008

6.9

1967

7.8

2007

6.7

1960

5.4

2006

6.7

2024

6.0

2001

4.4