1978

7.4

2014

7.6

1991

5.2

2016

7.3

2018

8.0

2023

0.0

1973

2.5

1993

0.0

2016

8.0

1985

6.2

2002

6.3

2002

6.0

2008

6.6

2008

5.3

1980

6.6

1993

5.5

2024

0.0

2024

0.0

2017

6.4

2019

6.9