I'd like to see a graph or some data showing when babies are born relative to the due date that the doctor assigned early on in the pregnancy. Not because I'm worried or anything, I'm just curious about it.

I've read that:
- only 3% of babies are born on their due dates
- first time mums birth later, on average
- caucasians birth later than asians and africans (why??), on average
- up to 10% of babies go as late as 42 weeks (why do they induce then if so many babies are naturally that late how is that a problem?)

I'd like to learn more about it. Does anyone know a source of more detailed statistics?

One thing I'm really curious about is whether the due date falls on average mid-way in the spectrum. If the due date calculations are accurate, you'd expect half of babies to be born before it and half to be born after it. Is that actually right?

Anyone know more about this?