1999

7.0

6.3

1993

7.4

2006

6.1

2000

6.2

2005

7.4

2002

8.2

2001

8.0

2013

7.0

2020

0.0

1987

7.2

2013

7.5

1983

5.2

1995

7.7

1994

7.5

1992

5.1

1996

9.0

2006

7.1

1992

7.1

1990

7.1