2000

7.5

2019

6.4

2020

6.2

2017

6.7

2009

6.5

1980

6.3

1989

6.0

1997

5.3

2023

0.0

2020

7.2

2009

5.5

1996

7.0

2003

6.7

2004

6.2

2004

7.2

2004

5.7

1985

6.2

1987

4.1

2016

5.0

2008

6.3