2013

6.4

1972

6.6

2003

4.8

2007

7.2

2020

6.1

2023

6.5

2002

6.4

2023

9.2

1992

6.2

2006

7.2

2007

5.4

2010

7.0

2006

7.0

2010

6.8

1961

6.9

2003

6.2

2000

5.3

1980

5.9

2012

5.0

2010

5.8