2013

6.9

1972

8.6

2021

6.8

1985

6.7

1980

6.8

1984

8.1

1958

6.7

1990

6.2

1974

7.5

2016

6.9

2002

7.9

1982

4.5

1984

6.5

1973

6.9

1982

7.1

1989

8.1

1960

5.0

1994

6.3

1985

0.0

1995

6.1