2018

4.6

1990

7.1

1970

6.2

1992

8.0

1980

6.0

8.0

1952

6.8

1999

5.0

2012

0.0

1989

5.7

1975

4.6

2003

6.3

1961

4.9

1968

6.6

1979

7.4

2.5

1989

3.5

1988

5.2

2022

2.0

2007

0.0