I have lost 57 lbs in 19 weeks, works out to 3 lbs a week.
But of course you have the fast beginning and the slower later. Here is my stats for you to see. I recently had my very first "0" loss week, but it is up and running again.

My weekly stats looked like this....
Week 1 = lost 7 lbs
Week 2 = lost 5 lbs
Week 3 = lost 3 lbs
Week 4 = lost 3.25 lbs
Week 5 = lost 2 lbs
Week 6 = lost 2 lbs
Week 7 = lost 1.75 lbs (upped my fat percentages)
Week 8 = lost 2 lbs
Week 9 = lost 4 lbs (began L-Carnitine)
Week 10 = lost 3.5 lbs
Week 11 = lost 1.5 lbs
Week 12 = lost 1.5 lbs
Week 13 = lost 3.5 lbs
Week 14 = lost 2 lbs
Week 15 = lost 3.2 lbs
Week 16 = lost 3.8 lbs (began OoO)
Week 17 = lost 3.5 lbs
Week 18 = lost 0 lbs (This week was my first 0 loss week)
Week 19 = lost 4 lbs
This week so far 1 lbs, weigh in is only on MONDAYS.