2001

7.8

1987

6.0

2005

6.3

2000

7.6

1984

5.5

1998

8.2

1997

6.4

1993

7.7

2014

6.2

2005

6.3

1995

6.9

2000

8.5

2002

7.9

1988

7.0

2007

7.5

2005

5.6

2001

8.0

1981

6.7

2007

5.0

1986

5.3

2001

7.6

2015

5.3

2003

9.3

1985

5.9

1997

7.7

1997

6.0

2003

7.2

2008

5.4

2002

7.1

1999

5.6