I assume the 16% are supposedf to mean 16% for distinct queries. The well-known queries and common typos are entered a lot more frequently - so a huge portion of those 16% may actually just be bored people googling for "fist-on-keyboard"
If that's the case, it's a very misleading statistic. If you have 1 million each of "facebook", "fcaebook", "facebok", "faceook", and "fakebook", and one "asdweniviwnxoemmgmejvj v fef", it's kind of spin to say "we’ve never seen 16% of the queries we see every day."
