2000

8.6

1989

8.4

2009

7.8

2014

9.5

2016

5.2

1987

5.5

2023

5.1

1997

9.0

2020

7.8

2016

6.4

2007

4.6

2002

5.0

2017

8.5

1971

5.0

2012

8.0

2015

8.0