The table gives oil imports (in million tonnes) from six countries over the years 2015 to 2019.
| Year | Saudi Arabia | Iran | Iraq | Nigeria | Kuwait | Venezuela |
|---|---|---|---|---|---|---|
| 2015 | 28.8 | 20.5 | 15.8 | 11.6 | 13.9 | 7.2 |
| 2016 | 29.9 | 21.8 | 14.4 | 10.5 | 14.8 | 7.6 |
| 2017 | 27.2 | 21.2 | 15 | 13.2 | 11.8 | 7.3 |
| 2018 | 27.4 | 18.5 | 17.2 | 15.9 | 11.5 | 10.3 |
| 2019 | 32.6 | 17.5 | 24.6 | 14.2 | 17.8 | 9.6 |
In which of the following years is the percentage increase or decrease in oil import from Nigeria over its previous year the maximum?
A2016
B2018
C2017 ✓ Correct
D2019
Correct answer: (C) 2017
Explanation
Nigeria's year-on-year changes are minus 9.48% in 2016, plus 25.71% in 2017, plus 20.45% in 2018 and minus 11.97% in 2019; the largest is in 2017. Hence option C.
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