1957

10.0

2021

9.2

2020

7.0

7.8

2017

7.4

2014

6.8

2014

5.6

1990

6.7

2020

6.7

2011

7.3

2001

7.2

2014

5.8

2002

7.4

1997

6.3

2013

6.3

2020

6.0

1968

6.4

2006

6.6

1993

6.5

2005

5.6