I've seen that with other topics as well. In case you didn't see it, I added a screenshot to that earlier post I made. The 'double peak' is pretty clear with 'adrenochrome', and slightly appears in the 'qanon' trend. [I picked the search terms arbitrarily.] These two don't resemble the 'human trafficking' results, though. Human trafficking interest has 'bounced' up and down for many years -- with a steady average trendline increase over time. https://files.catbox.moe/yt5ozl.png