7.8

1994

6.5

2006

6.0

7.1

1979

6.7

2012

4.7

2024

6.2

1973

6.3

2009

5.3

1996

5.4

1958

7.3

1973

7.5

2014

6.9

1999

8.2

1983

5.1

2011

5.1

2024

7.1

2008

7.6

1998

6.5

2000

5.2