2000

6.8

1996

6.7

2013

6.7

1994

0.0

1994

8.3

1983

6.3

2004

7.3

1972

6.9

1991

7.8

2020

7.6

2003

8.1

2002

7.9

1975

6.4

2002

8.7

2013

6.4

2008

0.0

1993

7.0

2019

10.0

2013

7.5

2012

7.4