1995

7.7

2003

7.4

2001

8.1

2006

0.0

1986

4.0

1979

6.8

1981

6.7

1999

7.7

2002

8.2

2014

2.0

2009

8.5

1999

7.7

1987

7.1

2019

0.0

1999

7.0

6.3

2006

5.7

2005

8.8

2000

6.2

2002

7.4