This sub-template handles one "column" of data (zero and positive numbers only) to produce a bar for display inside a barchart table.

No more than eight numbers are accepted as unnamed parameters
Colors are named color1, color2, color3, and so on, up to eight colors.
A style number may be specified. If even, the bar is horizontal.
A scale number may be specified. If so, the bar size in pixels becomes scale times data.

The template call must be enclosed within a table.

Examples:
Default style = 1, scale = 1
{| <!------ begin table ------>

{{Data bars/column
|16|color1=red
|32|color2=yellow
|64|color3=green
|48|color4=blue
}}

|} <!------ end table ------>
160
Specified style = 2, scale = 0.001
{| <!------ begin table ------>

{{Data bars/column
|style = 2
|scale = 0.001
|16000|color1=red
|32000|color2=yellow
|64000|color3=green
|48000|color4=blue
}} 

|} <!------ end table ------>
160000