1996

5.6

1999

5.0

1995

7.7

1983

9.0

1998

6.5

1999

0.0

2010

0.0

1992

7.0

1993

7.1

2015

6.0

1993

6.0

1989

8.0

1990

5.5

2004

1.0

1999

5.8

2005

5.9

1992

7.7

1962

7.5

1986

6.0

1994

6.7