1982

6.7

2018

6.0

1987

7.5

2005

7.4

1982

7.6

1990

6.4

2019

5.3

1996

5.8

2019

7.7

1930

6.3

1958

7.6

2018

7.0

1940

7.8

2005

5.4

2009

5.6

2005

6.5

2019

6.6

2017

6.1

1971

5.6

1980

7.0