2004

6.4

2008

7.8

2001

6.1

2000

6.5

2010

7.1

2011

6.2

2022

8.3

2023

7.8

2003

4.0

2011

7.5

2016

6.9

1973

6.4

1993

5.5

2016

5.7

2007

7.2

2003

5.7

2008

5.5

1973

6.8