So we're looking at 17% of MPs being Cassettes. I have 5 MP Cassettes, so out of my collection 25 MPs, they comprise 20% of my MP collection. Still, that's not nearly as much as say Micromasters which comprise 63% of my 1989-92 G1 collection! 75% of my TF Armada collection are Mini-Cons!

P.S.: When you think about it, half of the first year Decepticons were Cassettes! The Jets only comprised 30% of their fighting force.