1990

4.7

1992

4.4

2007

3.9

2000

8.0

1993

7.1

2021

7.5

1984

7.3

1989

8.3

1996

0.0

2012

0.0

1995

4.3

2008

8.4

1994

5.5

1994

7.2

1998

5.2

2002

7.3