2002

6.1

1978

6.6

2008

6.2

1998

6.2

1991

6.5

1995

6.2

1965

6.3

2018

0.0

2005

5.0

1992

6.4

1991

6.4

2007

6.0

1984

6.7

1991

5.3

1982

6.2

2003

5.1

2004

5.7

2001

6.0

1980

5.9

2006

5.5