Crystal Reports 2008 Charting Issue

Hi All,

I am having a strange problem with Crystal reports 2008 charting... I have rounded a field to 1 decimal point at DB layer and display that filed on Y-axis, its field value is exactly 0.2 for all dates on X-axis but line graph as below is not showing exactly what it should display, its slightly deviated from 0.2 line. Any thoughts how can I resolve this unusual behavior? Thanks