1976

7.1

1997

7.5

2004

8.6

1967

7.4

1991

7.8

2001

5.8

2002

6.7

2003

7.2

1992

0.0

2014

8.5

1986

4.0

2023

5.0

2006

7.3

2002

8.1

2013

3.3

2007

8.2

1999

7.4

2013

7.1

1977

7.8

2016

0.0