2006

5.6

2009

4.7

1986

1.0

1999

5.5

2008

6.3

1976

8.1

2019

0.0

2005

4.8

1989

6.3

1999

6.5

1997

7.6

2004

4.7

1998

6.3

1976

6.6

2002

5.0

1998

6.1

2002

6.4

2017

5.1

2017

6.7

1973

6.0