1994

6.2

1999

7.9

1990

0.0

2007

4.3

2000

5.8

1994

5.1

1989

4.7

1971

8.1

2000

7.6

1993

7.1

2004

4.9

1993

5.5

2011

4.3

1991

5.6

2003

6.7

1992

5.9

1984

7.5

1989

2.0

1998

7.3

1990

6.6

2006

5.3

1989

8.0

1993

6.7

1991

5.9

2002

8.1

1999

8.3

1994

7.2

1994

6.0