showing multiple curves in Line chart in rdlc Line chart

Question

I need to show multiple curves on a line chart in rdlc.  I have to show multiple curves for Flodd, tsunami,earthquake based on probability. till now waht i have done is in in y axis (value) i added the probability . and in x axis i have added the all three but i is not showing curve as i wanted. and i also tried added to flood , eq, tsunami in series but it still t is not showing the curve as i wanted .(as it is coming in excel)

 any one help me then let me know ..