The reports on the website are just a mere fraction - as not all are listed and "minor" infringements are not always reportable as the aircraft often "escapes" (You wouldn't believe how many aircraft "bust" their level when departing local airfields - often up to 2900 ft before descending) Not nice when there is invariably traffic at 3000 feet at the base of the LTMA.
...and unless they're squawking mode C, no one's the wiser!