I got 44 slaves, but I didn't fine-tune my inputs. Lots of great info on the site.
It's so frustrating that it's virtually impossible as a Westerner to avoid supporting slavery-based or slavery-associated industries. At least not without spending all your time researching your purchases or making everything yourself, even if you cut your purchases way down.
And it's disturbing how taboo this topic is, which is some ways makes it even worse than ancient Roman or antebellum US South slavery. At least they acknowledged what they were doing.