Does Mathematica provide access to data which is not available in Wolfram Alpha?
For example, I asked Wolfram Alpha "US fertility number of children" because I want to know the distribution of women in the US by the number of children they have had. Eg 40% no children, 30% 1 child, 20% 2 children, etc. However, Wolfram Alpha came up with nothing, just the net fertility rate (1.87) which I already knew.
Would it be futile to try to find this data through Mathematica because they use the same source data and queries, or will Mathematica have additional sources, not available in Wolfram Alpha?