This plugin can be used to display graphical bars in a wiki page, the syntax is very flexible :

Usage:
{GAUGE(params)}description{GAUGE}
Description is optional and will be displayed below the gauge if present.

Parameters:

color	bar color
bgcolor	background color
max	maximum possible value (default=100). if value exceeds max then color changes and '*******' appear)
value	current value (REQUIRED)
size	Bar size
label	label leftside of bar
labelsize	labelsize
perc	If true then a percentage is displayed
height	Bar height

Examples:
{GAUGE(perc=>true,label=>happy users,labelsize=>90,value=>35,bgcolor=>#EEEEEE)}{GAUGE}
{GAUGE(perc=>true,label=>more happy,labelsize=>90,value=>50,bgcolor=>#EEEEEE)}{GAUGE}
{GAUGE(perc=>true,label=>most happy,labelsize=>90,value=>100,bgcolor=>#EEEEEE)}{GAUGE}
{GAUGE(perc=>true,label=>value exceeds max,labelsize=>90,value=>190,bgcolor=>#EEEEEE)}{GAUGE}

Produces:

happy users

35.00%

more happy

50.00%

most happy

100.00%

value exceeds max

*******