2003

6.0

1973

6.3

2007

6.2

1993

6.5

2016

7.9

2013

7.0

1989

9.3

1979

6.7

2003

6.0

2004

6.8

1971

6.5

2003

6.4

1982

6.5

2008

7.0

2016

6.0

1994

6.1

1996

5.6

2002

5.1

1979

6.3

1991

6.7