5.8

1932

6.2

2005

5.7

2010

6.5

2008

6.9

1989

5.9

1996

5.3

1988

6.7

1970

6.1

2014

4.8

1982

8.0

1995

7.7

2017

6.8

2010

6.3

2012

6.0

1994

5.4

2003

5.0

2019

7.7

2008

6.1

2012

7.3