2018

6.6

2024

7.0

1998

8.6

1978

6.9

2011

7.3

2018

6.0

2021

9.2

2012

5.9

2012

6.0

2009

6.3

2006

5.5

2006

6.7

2004

6.2

1969

6.8

2025

6.6

2005

5.5

1982

5.9

2024

6.9