1994

5.7

1999

6.4

2005

6.1

2006

6.3

1990

6.8

2019

4.8

2011

3.1

1985

2.0

1980

5.1

2017

7.2

1999

6.5

2022

6.8

2016

5.7

2019

0.0

2022

1.0

2005

6.8

1975

5.6

2013

6.7

2005

6.3

2011

0.0