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I guess this answers all your questions except statistics. There is no statistics currently. But if you google previous year draw, or search here in Duelbits topic, you might be able to find at least some statistical data, to get more clear picture of this competition. Good Luck anyway.
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Thanks. OP answered to this too after you and they didn't mention statistics either, which seems weird. I know i am not technically just buying tickets but in every raffle i've been on i have seen how many tickets i am competing against.
And if i am not totally wrong they would be legally obligated to provide, if not total amount of tickets, at least constantly updating number of circulated amount of tickets. That's what others have done anyway. Maybe they are building that feature at the moment of writing this.