2014

6.0

2020

6.1

6.1

2019

5.4

1968

4.8

1987

5.5

2001

5.8

2013

6.1

2008

6.4

2010

7.5

1985

6.4

2003

6.2

2009

7.1

2011

7.2

2005

8.4

1996

5.9

2008

5.1

2022

6.1

2011

6.5

2020

7.0