1987

7.0

2015

9.3

2017

8.3

2018

8.0

2002

7.6

2001

6.5

2008

8.9

2021

9.0

1996

7.0

1975

7.3

2004

8.2

2002

0.0

2014

0.0

2001

7.5

2024

9.8

1985

7.7

2021

6.1

1999

8.4

2013

0.0

2023

8.6