Historically, it's closer to 94%. In rough numbers, there have been around 100 billion humans [1], and only around 6 billion of them are left, even if you count the Dalai Lama.
Well, 94% mortality and 6% for which there is insufficient data to draw a conclusion. We'll have to wait a while to be sure if any of them are immortal.
(Perhaps 99.9999% if you include the Dalai Lama)