2008

6.6

1993

6.3

2013

6.8

2003

8.3

1994

6.7

2004

6.0

2003

6.9

2016

7.0

1995

7.3

1958

8.0

1983

4.3

1963

7.6

1954

7.1

1946

6.3

1991

7.1

2000

6.2

2005

6.2

1927

0.0

2017

5.8

2019

0.0