2004

6.0

2005

7.2

1977

4.0

2002

5.9

2006

6.3

2014

6.7

1976

5.9

2003

6.6

1999

7.6

2004

7.4

1994

7.5

2020

7.0

2001

5.6

2004

4.8

1999

6.0

2000

6.5

2019

7.7

2008

5.5

2005

5.2

2021

4.0