1990

6.6

1989

5.8

2006

6.7

1999

8.3

2018

6.2

2006

7.6

2003

7.2

1997

8.4

1984

7.7

2005

8.6

2002

7.4

2006

0.0

2020

10.0

2009

4.0

2013

5.8

1994

5.5

2021

10.0

1994

7.7

2000

5.8

1998

7.0