Google stepped area chart. (see the doc of Google)

Data format

Each row in the table represents a group of bars.

Column	Type	Description
0	string	X-axis group labels
1	Number	Bar 1 values
N	Number	Bar N values

Chart options

Each option is separated by a '|' or '!' (for Mediawiki).

Name	Default	Description
width	100%	Chart width
height		Chart height
Others...		You can use the configuration options of Google. See the doc

Examples

With title and legend

Options : title=The decline of "The 39 Steps"|hAxis.title=Accumulated Rating|isStacked= true|legend.position=bottom