UJM: Worldwide, it is 105/100. It may be a bit higher among Frum Jews, as younger fathers are more likely to have boys, and since we are growing very rapidly, a relatively large proportion of Jewish fathers are somewhat young. Among Jews, it may be as high as 106/100. Regardless, that isn’t enough to outweigh the OTD factor, disability factor and early death factor (2 to 3 times as many boys go off the derech compared to girls, according to someone who works it OTD field).
Even in Israel, where the age gap is closer than here in America, Litvish boys still have an advantage over Litvish girls.