1967

5.0

2009

5.6

2017

5.9

2016

6.7

2020

5.6

2010

5.0

2020

6.4

2010

4.7

2003

6.4

2006

8.0

2014

6.5

2011

7.0

1964

6.6

1946

6.0

7.8

2025

6.6

1972

6.9

1946

5.8

2020

5.5