Quick Question about Processing times

My question is quite simple. Is there any information on how long does it take to process the parcels? I mean the sample you provided had been "Collected" and 3 days after that it was "Opened" and "Departed" and a day later it was "Shipped". My question is simple - are those usual times of processing the package between collection and shipment or they depend on other things? It took my package 10 days to change status from "No information" to "Opening". So my wild guess is it is going to take another 10 days for it to be shipped to my country (Bulgaria). Can somebody explain things to me, because I am a little bit confused.