2006

6.3

2016

6.7

2017

7.6

2006

6.0

1968

6.4

1998

6.5

2005

5.2

2014

6.2

2009

5.6

1984

8.4

2021

6.2

1975

7.0

1982

6.3

2009

6.7

2021

10.0

1966

5.6

2017

6.9

2015

6.6

2017

4.4

1980

6.6