2006

6.1

2005

5.0

2016

4.0

1996

5.4

1976

2.5

2004

6.3

2000

5.7

1996

6.6

2003

8.0

2002

7.5

2000

7.4

2005

5.1

1994

6.0

1992

6.3

1986

6.3

2009

2.0

2018

6.8

1993

6.7

1997

4.5

2000

5.3