2007

10.0

2019

7.5

1993

6.2

2011

5.9

2019

6.2

1960

6.5

2017

7.4

2000

5.2

2008

5.2

1978

7.4

1965

6.8

2013

6.1

1972

6.4

2009

6.6

2015

7.0

1988

7.6

2007

9.8

1981

7.8

2003

7.1

2016

5.6