2017

6.7

1997

4.0

2005

6.0

2004

5.6

2021

6.8

2003

4.7

2002

6.2

1935

4.7

1992

7.0

2016

6.5

2002

6.4

2015

3.0

1995

6.5

2010

4.6

2002

6.0

2006

6.5

1978

7.5

2007

6.6

1995

7.7

2017

6.2