how to disply no into stars symbol?

[#1]

Hi

I have table like bellow

t1,t2 fields and data is

C1,13

C2,14

C3,15

this table load into qv .

my requirement is creating a chart and display no replace stars symbol that means

13 no replace ************* like 14 and 15

How it's possible and witch chart and what function using.