Daas: the census does take into account population growth, hence you can see the increase from various years. Did you look at the census article? Click on the right side link for population growth.
In addition, there was a study done by the US dept of LAbor that seems to indicate that there is a 51% chance in the US for boys being born. See the Chance Magazine article “Does Having Boys or Girls Run in the Family?” By Joseph Lee Rodgers and Debby Doughty
Why do you think frum people are not affected by the same statistical outcomes as the rest of the world?
AZ: Please provide the article that took a census of ALL yeshiva’s and Day schools and breaks it down by gender. It would be interesting to read. In addition, Global is 107 per 100 while in the US it is 105 per 100 (close to your 104). Either way, there are more boys than girls. Not to over simplify, but lets start from year 1. There are 105 boys born for 100 girls. AT year 18 there are 1,890 boys vs 1000 girls. Argument sake, 10% of the girls marry. That leaves 900 Girls versus 1,790 boys left. Year 19: There is now 1900 (another 1000 girls reach marriageable age after 18 years) girls and 3680 boys. Remember, if girls start dating by 18 so if 10% of girls marry, that means only 100 boys marry those girls. Now lets say 20% got married. That will leave 1520 girls unmarried and while we now have 3300 boys unmarried. As you can see, as the years go on, based on whatever statistics you want to use (104 , 105, or 107) there will ALWAYS be more guys than girls. Of course this does include people going off the derech or dying. The fact a girl starts younger actually helps the girls get married younger. In addition, for argument sake, lets say 100% of all the girls from year 20 to 18 get married, that would mean 2520 girls marrying out of the 5190 boys (remember, each year increases boys over 18 by 1890 boys). That means ALL the girls from years 18, 19, & 20 are now married, there will still be a surplus of 2670 boys who are unmarried. if anything, the shidduch crises is on the boys, not girls.