1961

6.3

2021

6.0

2002

5.5

2023

6.5

1977

6.7

2007

8.6

2010

5.5

1931

5.8

2008

6.9

1970

4.6

1953

7.3

1993

5.5

2002

8.4

2016

3.6

1975

6.0

2013

6.1

2009

5.0

2008

5.6

2012

9.4