The time period of all charts will default to 12 months (1 year).
To alter the time period of a chart simple make a selection from the from down menu to the right hand side of the chart area (see fig. 1.1)

fig 1.1
The available time periods are – 3 months, 6 months, 12 months (1 year), 36 months (3 years) and 60 months (5 years). (see fig. 1.2)

fig. 1.2
Once a selection has been
made the chart will automatically re-draw with data covering the specified time
period.