In many third world countries, their data on humans in insufficient; so insufficient that some population data doesn't even include women! Even if a woman works and provides income for a household, because she isn't the man in charge the data won't acknowledge the wife. More thorough and honest data on females is imperative for gender roles and respect to conjoin.

Source: http://paidpost.nytimes.com/gates-foundation/closing-the-gender-data-gap.html?WT.mc_id=2016-may-nytnative_hpmod-gatesgirls-0516-0729&WT.mc_ev=click?module=PaidPostDriver&region=PaidPostMOTH&pgType=Homepage&action=click