2002

5.4

1999

7.2

1992

5.0

1973

6.8

1990

6.1

2019

6.3

2017

6.6

2003

7.1

1965

6.8

2011

6.7

2013

3.6

2014

5.7

1995

6.2

2023

9.2

2010

6.6

2014

7.4

2012

7.2

2012

4.8

2014

6.4

2018

5.7