1998

7.2

2019

7.8

2010

7.9

2005

5.6

2001

6.6

1985

4.1

1965

6.0

2023

7.3

1997

8.0

2013

7.8

2013

7.1

2010

7.8

2012

8.4

2014

8.3

2014

6.8

2006

6.0

1990

8.7

2017

6.4

2009

8.3

2009

8.3