1996

4.5

2005

8.2

2019

5.6

1995

6.4

2015

8.3

2014

8.4

2000

7.6

1993

7.1

1994

7.8

2006

7.5

2004

3.0

1990

5.3

2003

7.6

1998

5.5

2008

6.6

2011

8.2

1995

4.8

1994

7.2

2005

7.5