First time EAD timeframe

I have filed 485 and ead today. can someone tell me approximately when will i receive EAD approval notice or how long it takes for EAD to approve.
 
my wife got hers approved last week: it took her 75 days to get the approval notice, and 2-3 more days to get the card. the receipt was received 5-7 business days after mailing day.
 
mine took about 65 days

I got mine in about 65 days (first EAD - was still using H1B).
Wife got a renewal in about 60 days.
 
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