The graph displays a simple overview of subscribers for last and current year. Useful to see how your subscriber base
has grown over the last couple of years. The
statistics page will show more information. Note that the graph shows subcribers
once only, so if subscribers are in multiple campaigns they won't be duplicated. The date is taken from their initial campaign sign up.
If you prefer not to show the graph on small devices, set the 'GRAPH_SM_DEV' constant to '0' in the 'control/userdef.php' file.