1997

5.5

2002

6.9

2016

6.4

1986

1.0

2017

7.2

2022

7.8

1994

8.3

1997

7.2

2005

3.3

2003

1.7

1989

5.2

2008

0.0

1989

3.0

2004

0.0

2001

6.6

1990

4.2