1972

7.9

2012

0.0

0.0

1994

9.0

2002

7.6

2021

6.7

2005

4.8

1988

7.2

1986

7.8

2012

7.2

1998

7.0

2017

7.9

2003

8.6

2016

2.0

1983

5.0

1976

7.4

1993

7.0

2004

8.2

2002

8.0

1986

5.8