2000

5.0

1992

6.8

1994

1.0

1995

5.9

1984

6.0

1998

0.0

2005

6.3

1989

3.0

1982

6.4

1993

6.2

2002

5.5

1985

5.3

2015

4.5

1996

5.5

2004

5.7

1987

5.3

2005

6.7

2008

5.1

2008

5.8

1966

7.7