From the chart in post #7 of my thread on page 1 in the study "Pharmacokinetics and Metabolic Effects of High-Dose Growth Hormone Administration in Healthy Adult Men", Toshiaki Tanaka, et al., Endocrine Journal 1999, 46 (4), 605-612, where fifteen healthy normal Japanese adult males aged from 20 to 27 years were administered various doses of recombinant GH (Norditropin) we find that:
.075iu/kg (7.5iu in a 100kg man) generated about 300ng/ml by the end of the day.
.15iu/kg (15iu in a 100kg man) generated about 380ng/ml by the end of the day.
.30iu/kg (30iu in a 100kg man) generated about 420ng/ml by the end of the day.
Note that these were normal Japanese men in their 20's. They probably weighed on average 75 kilos so those GH dosing amounts would have in actuality been about 25% less... between about 5iu & 22iu.
This should give you an idea.