2007

5.7

2010

7.7

2008

8.1

2020

6.1

2019

8.7

2012

6.4

2011

5.7

2025

6.7

2015

5.1

2004

8.4

1970

7.7

2017

5.9

1995

5.7

1972

7.4

2024

6.9

2019

8.0

1967

9.0

2025

5.9

2016

6.2

1931

5.8