2014

6.0

1931

5.8

6.1

2013

6.1

2021

5.7

1973

7.2

2012

7.0

2001

6.0

2015

5.6

2014

5.6

2013

6.1

2010

6.1

2013

6.7

2021

7.4

1992

5.4

2021

7.2

2015

5.9

1984

6.7

2016

5.9

2021

6.2