2003

6.6

2015

5.4

2004

5.2

1967

6.9

2014

6.7

2007

6.4

2006

6.3

2001

7.4

1991

5.9

1996

7.0

2023

0.0

1955

7.3

1991

4.6

1973

3.5

1970

3.8

2021

4.9

2008

6.4

2016

6.3

2014

4.8

1977

4.5