1985

6.1

1959

5.9

2016

10.0

2015

5.0

2020

3.5

2011

3.4

2014

5.0

1970

8.5

2004

7.7

1984

6.8

2016

6.0

1962

5.2

1935

6.3

2009

7.5

2010

6.0

2018

6.1

2000

6.7

2020

6.2

2016

6.7