2017

5.7

2016

6.8

1973

7.6

1970

8.2

1957

7.9

1941

7.0

2018

6.1

1928

7.6

1981

8.9

1947

7.4

1978

7.1

2003

6.5

2017

5.5

2012

4.4

1985

7.2

1981

6.7

2016

7.3

2017

7.4

1990

6.3

1999

7.3