2015

6.4

2002

4.0

2001

6.7

1995

0.0

1999

4.8

1998

4.5

1992

7.1

1996

7.2

1999

5.2

2000

6.3

1999

6.7

1993

6.1

1994

8.2

2002

7.1

1991

0.0

2001

6.2

1998

6.7

1984

6.7

2014

6.5

1999

6.4

2001

6.4

1995

9.0

2002

0.0

2000

0.0

1994

6.0