1999

8.0

2005

4.6

1998

6.6

1978

5.5

2022

6.2

2021

3.3

2019

6.2

1974

0.0

1997

10.0

2001

5.7

2006

5.4

2007

6.5

2014

3.8

1994

7.3

1995

6.2

2015

4.0

2016

7.0

2003

6.5

1976

0.0

2020

5.6