5.3

2004

7.1

2009

7.5

2017

6.8

2018

7.5

2008

6.8

1966

7.6

1988

6.2

2011

6.1

2004

9.9

2011

6.0

2009

8.5

1995

7.6

9.4

1960

7.8

2014

7.4

2023

5.5

1998

7.0

2005

6.6