2014

7.4

2017

4.5

2020

7.8

2014

6.5

2016

7.0

2023

4.8

2000

8.4

1974

6.0

2007

4.0

2017

7.0

2010

10.0

2015

8.0

2020

8.0

2017

10.0

2000

7.0