How do I encode a single quote so it shows up in the label of a Fusion Chart's value?

I'm getting an 'Invalid XML Data' error for any Fusion Chart which contains a ' (ie. single quote) in the label name for data.

This happens even when I encode/escape the single quote.

Try the following Chart Data:

Obviously when unescaped (as such) we should see an error

<chart shownames='1' caption='Registrant Types'>
    <set value='2' color='AFD8F8' label='Justin's Test'/>
    <set value='3' color='F6BD0F' label='No quote'/>
</chart>

However I would expect that if I encode the quote as fol开发者_Go百科lows it should work

<chart shownames='1' caption='Registrant Types'>
    <set value='2' color='AFD8F8' label='Justin%27s Test'/>
    <set value='3' color='F6BD0F' label='No quote'/>
</chart>

The only way I can get it to work is by removing the ' altogether.

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Try:

<set value='2' color='AFD8F8' label='Justin&quot;s Test'/>