1989

8.0

1999

7.4

1999

7.7

2017

5.7

2010

8.7

2017

10.0

2016

7.2

2012

6.8

0.0

2023

0.0

1969

9.0

1967

7.4

1991

7.8

2001

5.8

2002

6.1

2003

7.2

2015

0.0

2002

0.0

2018

5.5

2020

6.0