Interesting facts:

year with most teamups: 1996 (17 teamups)

year with least teamups: 2009 (1 teamups)

author with most teamups:

Hero with most teamups:

Two heroes that had most teamups together:

Oldest teamup was in 1976 in L'Ombra: Patto col diavolo

Newest teamup was in 2016 in Martin Mystère presenta Zio Boris: Gli eroi dei due (o tre) mondi