Which of the following years witnessed the highest increase in per capital income compared to the previous year?

In the above given bar graphs the population and national income of a country from the fiscal years 2014-15 to 2019-20 are shown.

Let us tabulate the above information from the graph into a table and also calculate per capita income for all the fiscal years.

On the basis of the above table

We need to find the year which witnessed the highest increase in per capita income compared to the previous year.

Let us check for each option and calculate the increase in per capita income compared to previous years for the following fiscal years.

Option A) 2016-2017

The difference in per capita income for years 2016-2017 and 2015-2016 is approximately equal to 3786-3482 = 304

Option B) 2017-2018

The difference in per capita income for years 2017-2018 and 2016-2017 is approximately equal to 4221-3786 = 435

Option C) 2015-2016

The difference in per capita income for years 2015-2016 and 2014-2015 is approximately equal to 3482-3098 = 384

Option D) 2018-2019

The difference in per capita income for years 2018-2019 and 2017-2018 is approximately equal to 4857-4221 = 636

Hence, the highest increase in per capita income compared to previous year is in the fiscal year 2018-2019. (Option D)