2008

4.9

1998

5.4

2005

5.2

1995

6.5

1996

6.7

2004

6.2

2018

5.2

2005

6.1

2008

6.2

2017

5.9

1971

5.3

1964

5.5

2001

5.3

1998

5.4

1984

6.0

2005

6.4

2022

0.0

1981

7.0

2003

5.7

1952

6.6