2006

5.7

1998

6.0

1972

6.4

1995

6.3

2017

5.5

2012

6.3

1931

5.8

2011

7.2

1981

6.2

1989

6.3

2011

4.6

2020

7.0

2001

7.4

5.4

1966

6.5

2011

6.0

1983

4.5

2002

5.5

2015

7.4