Size of female lab

Question
My soon to be 8 month old English Lab is currently 70 pounds.  The breeder told us she should weigh between 60 and 70 pounds.  She is not overweight, you can feel her ribs but not see them.  She just looks full grown already.  I am wondering how much more growth will take place in the months to come.  I have looked everywhere for growth charts but can't find any.

Answer
The rate of growth varies from dog to dog, but slows after about 6 months.  Is she that much bigger now, than 2 months ago?  She should be growing at an even slower rate now.  One thing is to look at the knobs at the bottom of her leg bones.  if they are still quite prominent, she has more growing to do.  My guess is she will level off about 75-80 pounds.  You may want to look at http://www.longliveyourdog.com/twoplus/RateYourDog.aspx

This is one of the best resources on dog growth I have seen, http://jn.nutrition.org/cgi/content/full/134/8/2027S