1995

5.4

1989

5.3

2001

5.1

2003

6.3

1998

5.7

2000

6.1

2006

6.4

2002

3.7

2006

5.1

2007

6.3

2001

4.4

2006

4.8

2007

4.4

1988

6.7

2023

6.9

2018

0.0

2021

6.4

2014

5.6

1998

5.4

1973

5.7