World sex ratio: Male & Female as Babies and Seniors. UPDATED

At birth:  Males a bit more common.  Some countries abort many females.  China, India are the largest skewed populations, but Morocco, Spain, Serbia, Greece, Ukraine and some others show up.

Added:  World Bank Blames China, India for “Missing Women”

UPDATE: Background stats on fertility and sex preferences, an excellent writeup.

As seniors, women prevail everywhere. "And thus the whirligig of time brings in his revenges".  Risky behaviour and wars play a role.  

Source:  Charts Bin