2013

6.1

2020

5.2

1974

5.7

1973

6.8

1975

6.4

1991

4.7

1961

7.7

1994

6.5

1985

5.9

2014

7.0

1999

7.2

1966

7.5

2025

5.5

2009

8.5

2006

5.4

2004

5.7

2009

6.3

1984

7.3

2004

7.0

1951

5.1