1986

5.8

1965

7.1

1996

5.4

2014

5.7

1970

6.0

2025

6.1

2018

6.1

2004

9.4

2013

6.1

2010

6.0

1989

6.0

2017

7.3

2021

6.4

1986

6.4

1988

5.3

2009

7.2

2006

7.3

1998

7.5

2009

5.4

2004

6.7