'Ndrangheta pentiti are still less than 100 I believe. While Cosa Nostra and Camorra have each 1000-2000 in the last decades.
Ndrangheta has almost 200, Cosa Nostra 300 and Camorra 600; there are also 100 from Sacra Corona Unita and 80 foreigners
Gratteri said, before 2008, there were 1,000 pentiti (informants) from Sicily's Cosa Nostra, 2,000 from Naples's Camorra and only 42 with the Calabrian mafia.