What we need to know is what is the expected average if there's zero gender abortions. Is it 100 boys for every 100 girls?
There are many factors that influence whether a sperm containing a Y sex chromosome or one containing an X chromosome will be first to fertilize an egg. These include the age of the parents, their environmental exposure, stress, the stage in the mother's ovulation cycle and even whether she has had children previously. The
natural ratio* appears to be about 1.05:1 (male:female). In recent years the global average has been up to 1.07:1, which is assumed to be a result of sex selective abortions in countries like China and India. The population total of male to female is much closer to 1.01:1, generally due to shorter average life spans of males and many of them dying young (we are the fragile gender).
*Natural ratio - This is the current human natural ratio which has resulted in the gender balance of population. The evolutionary biologist, Sir Ronald Fisher, proposed that a natural reproductive advantage goes to members of the minority gender that brings back a balance.