Hahaha. Well maybe 55% of it are those who were once newbies trying to make interaction as active as they think. So they look for potential friends in the feeds. Chances are, they eventually forget about it after a couple of times. Some of them may have gotten bored, too. Hmmm. Let's say you're a truly extrovert person and has invited quite a lot in steemit (dunno about this coz I have know idea about your real life tho but yeah let's just make that as an example if you don't mind), maybe the 19% of that are your friends who truly follow you and check your posts. Then, 16% might be those people who you truly inspire and have followed you religiously. And the rest 10% maybe bots.