2006

6.9

2012

6.3

2016

7.7

2023

8.3

2012

6.9

2007

7.7

2014

6.9

2001

8.3

2001

6.6

1973

6.8

1992

5.8

2007

6.7

1977

9.0

2005

7.0

2020

6.1

2016

7.4

1978

7.1

2015

6.0

2014

7.5

2019

7.0