1999

7.2

1974

6.3

2000

6.5

2009

7.8

1972

10.0

2013

7.3

2014

7.1

2015

4.5

2010

8.0

1984

6.7

2014

6.9

0.0

2006

0.0

1968

0.0

1979

7.0

2013

1.7

2013

5.5

1981

8.0

2023

0.0

2006

7.8