1980

8.2

1960

8.4

2006

6.6

1999

6.5

2000

6.3

2003

5.8

1958

7.8

2006

5.5

1998

6.3

2014

5.7

1990

6.9

1948

7.4

2017

5.6

1991

7.5

1955

7.3

2021

0.0

2019

5.3

2017

5.5

2005

6.4

1998

4.8