LinearAxis as horizontal axis in LineChart

Hi guys,
The ff: is an excerpt of the xml i am working with:
<?xml version="1.0" encoding="UTF-8"?>
<efiles>
<dataset name="BoyBMI">
<age month="24">
<P5>14.737319472</P5>
<P10>15.090328265</P10>
<P25>15.74164233</P25>
<P50>16.575027675</P50>
<P75>17.55718781</P75>
<P85>18.162194733</P85>
<P90>18.609481276</P90>
<P95>19.338010618</P95>
</age>
<age month="24.5">
<P5>14.719292573</P5>
<P10>15.071174743</P10>
<P25>15.71962876</P25>
<P50>16.547774867</P50>
<P75>17.521292788</P75>
<P85>18.119549228</P85>
<P90>18.561106338</P90>
<P95>19.278898128</P95>
</age>
<age month="25.5">
<P5>14.683608414</P5>
<P10>15.033357254</P10>
<P25>15.676344635</P25>
<P50>16.494427632</P50>
<P75>17.451350388</P75>
<P85>18.036680126</P85>
<P90>18.467295933</P90>
<P95>19.164659645</P95>
</age>
</dataset>
</efiles>
The actual age(months) values is up to 240.5 months. So this
xml is kind of too long to post. ;)
Anyways, the goal is to present this data into a line chart
with the elements:
-age(in years) in horizontal axis;
-the values of P5,P10,P25,P50,P75,P85,P90,P95 in vertical
axis.
The values are plotted so well in the chart and so is the
vertical axis. The problem is in displaying labels in the
horizontal axis. Primarily, I made use of CategoryAxis but the
labels are not displaying at all. And then i utilized LinearAxis
and created a labelFunction renderYears(). However, I noticed that
it takes a different value for the month. Why is it that the age
values taken by LinearAxis is the index instead of the month value
in the xml? Say, the age month value in the xml is 24, the value it
evaluates is 0, then if the month value is 24.5 it takes 1, so on
and so forth. How can LinearAxis takes month as the value to be
evaluated in the labelFunction? Please help....
Thanks a lot.

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