2008

5.3

1995

6.1

1988

5.7

2020

1.0

1967

5.3

2019

7.6

1980

6.2

2008

3.2

2007

3.9

2004

6.2

1999

5.8

1993

6.5

1994

4.9

1982

6.1

1974

7.9

1996

6.6

1966

6.5

1966

6.5

1965

6.3

1964

6.5