Best article to date that I've seen that quantifies the amount of great whites and their behavior.
http://www.ocregister.com/2017/11/28/adios-sharks-younger-great-whites-leaving-so-cal-for-first-time-in-years/ (http://www.ocregister.com/2017/11/28/adios-sharks-younger-great-whites-leaving-so-cal-for-first-time-in-years/)
Great read, Chip!
I especially like the tag data.