1984

6.4

1982

7.9

2009

7.6

1990

8.5

1943

8.2

2014

7.9

2019

8.5

1998

7.0

2019

7.4

1960

8.4

1965

8.0

2015

7.5

1994

8.3

1979

8.3

2000

7.4

2003

7.1

1987

7.7

2004

7.1

2004

8.1

2020

7.2