2000

7.6

1982

6.2

2006

6.8

1982

7.2

2000

5.8

2004

6.9

2019

6.0

1972

6.4

1976

7.6

1996

7.0

1986

5.6

1987

5.8

2014

7.4

2014

5.0

1956

2.5

1970

0.0

1984

5.4

2016

1.0

1923

7.5

1998

6.9