1990

6.9

2011

6.8

2015

6.5

1992

6.8

2019

7.3

2024

7.0

2016

2.2

2009

8.5

2011

4.7

2022

7.7

2019

5.0

2014

6.4

2017

8.0

1987

9.0

2017

8.0

2022

6.4

2016

7.0

2017

7.0