Never think small!
Frankly, probably better as a table than a graph, something like...
160m 80m 40m 20m 15m 10m Total
callsign1 3 2 5 7 2 1 20
We try to generate this kind of data after a major contest for club
purposes. For my use, 2 days of data, limited to the "contesthf"
frequencies.
charlie, k1xx