1983

7.6

2000

4.0

2000

7.4

1943

8.2

1980

8.2

1960

8.4

1998

7.0

1982

7.9

1980

8.4

2015

7.5

2016

7.6

2000

6.4

1999

8.0

2019

7.4

2004

8.1

1985

7.7

1991

8.3

2006

6.1

1990

8.5

1964

7.5