2006

6.8

2002

6.0

2003

7.6

1979

0.0

1980

0.0

1984

6.1

2004

7.7

1993

6.8

2003

2.0

1977

5.5

1955

0.0

2007

6.6

2012

5.6

1994

8.4

1998

7.2

1999

7.5

2013

7.7

2024

7.4

2015

7.0

1979

5.0