1987

5.0

2006

6.3

2014

3.6

2017

4.0

2014

2.5

2014

5.2

1997

6.6

2024

9.5

2008

7.0

2002

0.0

2009

4.0

1999

0.0

1987

4.0

1981

6.6

1951

6.5

1955

6.2

2005

8.1

2000

5.7

2004

7.0

2002

7.7