As an aside, have a look at that table and sort it on "Total", descending. Notice which countries rise to the top and in what way they differ from more or less all other countries:

   Country/region  birth  0–14  15–24 25–54  55–64 Over 65 Total
   Vatican City  --  --  --  --  --  --  All male
   Qatar    1.02  1.02  2.42  5.01  3.40  1.89  3.39
   United Arab Emirates 1.06  1.07  1.19  3.27  6.05  3.39  2.56
   Bahrain    1.03  1.03  1.31  1.87  1.67  1.04  1.53
   Kuwait    1.05  1.09  1.21  1.69  1.26  0.79  1.38
   Saudi Arabia  1.05  1.04  1.09  1.52  1.61  1.12  1.30
   Oman    1.05  1.05  1.11  1.33  1.13  0.92  1.18 

Where do women in Qatar, the UAE, Bahrain, Kuwait and Saudi Arabia end up? Do they die much earlier or is this some weird effect of migration?