2018

5.4

2013

5.9

2009

7.1

1974

6.4

1993

5.0

2022

5.8

1999

7.6

2016

6.0

2009

7.5

2005

6.2

2004

5.2

2014

8.1

2004

6.2

1991

6.7

1996

4.0

1995

6.3

1995

6.3

1999

7.1

2006

7.4

1999

6.8