Relative prices of different liquids

I decided to try doing this chart with the Google Graphics API. Seems like this interface could be a bit more user friendly, or maybe the documentation isn't clear (or I'm dumb).



"Source code":
http://chart.apis.google.com/chart?chs=800x300
&chtt=Fluid+Costs+($+per+ml)&chts=ff0000,20
&chd=t:70|38|7|3|1|1|.5|.2&chco=aaaaaa,bb0000,
00ff00,00ffff,ffff00,ff0000,999999,000000
&cht=bvg&chxt=x,y&chxl=0:|||||||1:
&chdl=HP+Ink|Blood|Penicillin|3M+PF5030|Vodka|
Red+Bull|Bottled+Water|Crude+Oil