Do you have a Google account you log into when you search? At some point, I realized, my vanity searches were higher for myself when I was logged into Google then when I was logged out.
Yep, I'm the number one even when I'm not logged onto my Google account. And, I'm being facetious. I really don't care (mostly) if I'm 1st or 7th or 33,000th. But I do look every now and again.