2011

4.5

2012

5.3

2005

8.2

2002

7.7

2004

7.9

1994

7.8

1989

6.8

2019

7.7

1990

7.4

2001

7.1

1995

6.0

1995

7.3

2007

7.7

1996

5.2

1998

6.3

2000

6.9

1993

8.4