@Loudmouth you seem to know quite a bit on HGT (given that ERV thread); maybe you can be of some assistance? The best I could find was
this recent article talking about Crisp's recent paper in the AAAS. They found 145 foreign genes in humans. This is compared to around 25,000 genes that code for proteins, which make up about 1.5% of the total genome. So basically, HGT accounts for about 0.0087% of the genome. This is secondary literature, but the paper in question shouldn't be too hard to find given that this is literally the press release about that paper.

0.0087%. That's really not that much. And this is the most recent, up-to-date research which supposedly has increased the number quite substantially. I will, however, admit that I'm more than a little confused, because Wiki cites the number of ERV insertion sites as about 8% of the genome. So... Is that
not HGT? Time to do a little research. Well, actually, time to do the dishes, then hope that Loudmouth knows the answer, and then, if I
really have to, do a little research.