What contraceptives do women hide from their partners?

To clarify, this graph shows frequency of previous contraceptives used for women who have hidden contraceptive use in the past across twelve villages in Meatu, Tanzania. So, while hiding a condom is obviously difficult, women who have hidden the pill from their partner have also used condoms in the past. Injections are extremely popular in this rural district, notably for their effective duration.

Easily the most interesting graph I've made in a while.