1970

7.1

1964

7.1

2021

7.0

2012

0.0

1993

3.8

2004

5.5

2005

6.3

1973

3.8

2020

5.4

1976

4.4

1980

5.6

1973

5.6

2000

6.2

1996

3.4

2002

4.1

1976

6.5

1947

5.8

1975

5.4

2007

3.0

1992

1.7