2017

5.9

2022

7.8

2008

7.7

2006

6.3

1996

9.4

2012

6.4

2004

7.1

2011

6.3

2022

7.3

2017

6.9

2018

6.9

2004

6.0

1981

6.7

1971

5.6

5.4

2008

6.8

2006

6.1

1990

6.6

1999

7.4