So far, from past records, all PVs get in. Anyway, they will only take in a certain number of PVs to ensure that all will get a place. Those who are thinking about balloting, if you're not within 1km, they'll ask you not to try your luck, priority goes to those within 1km. Only if the number falls below what is available, then they will open to those outside 1km.
Eunice, look for orangeymum. She's been MIA lately. You can search under archive and PM her.