SSC CHSL 12 Oct 2020 Shift 1 Paper

The following graph given the annual per cent profit earned by a company during the period 1996-2001. Study the graph carefully and answer the questions that follow.
Per cent Profit
$=\frac{\mathrm{Income}-\mathrm{Expenditure}}{\mathrm{Expenditure}}\times 100$ The period in which the profit of the company has increased fastest is