1967

6.9

1971

7.4

2002

6.9

1977

5.5

2012

9.3

1986

6.4

2017

7.7

5.6

1931

5.0

2021

6.5

1970

7.6

2016

10.0

2012

8.9

2006

6.0

1959

6.2

1912

4.0

2018

5.0