2018

6.5

2003

6.0

1989

5.7

1985

6.6

2013

5.8

2005

6.2

2004

5.9

2014

6.7

1985

6.2

1979

6.7

1996

4.8

1979

5.8

2024

7.0

1968

7.6

1976

6.6

2006

5.8

2006

6.4

2007

6.7

2008

5.8

2008

6.0