1997

6.1

1930

7.7

1990

8.5

1951

7.6

2016

5.9

2003

6.7

1967

6.6

2012

4.3

2001

6.0

2016

7.0

2009

7.6

1959

8.1

2006

5.4

2010

6.6

1924

6.5

2017

6.9

1944

7.1

1989

6.6

1953

5.4