"by amount of" is correct and can be used in written English.
For example: "The success of the project was determined by amount of dedication put into it."
It was – judging by amount of web-traffic the piece attracted and the volume of comments it received.
Of the top 25 initial offerings by amount of proceeds raised, Nasdaq has handled only three including Facebook, according to data from Thomson Reuters.
They say the United States should do what some other countries do, which is rate cars by amount of fuel consumed for a given distance, gallons per 100 miles, for example.
He shrugs at the fact that the free enterprise system has virtually disappeared from the farm economy of Montana, the nation's No. 2 farm state by amount of acreage.
The new results increase the water estimate to about 40 gallons, and by estimating by amount of dirt excavated by the impact, calculated the concentration of water for the first time.
The SaaS model depends on it: companies charge by user or by amount of data stored.
Eligibility is generally determined by amount of time remaining on a current contract and payment history.
C: PCoA of participant knowledge of evolution scores coded by amount of science education.
All briquettes properties were predominantly affected by amount of molasses used.
a shows monthly risk adjustment payments in 2011, ordered by amount of payment (which corresponds to increasing age).
Average participant knowledge of biological evolution and acceptance of biological evolutiongrouped by amount of science education reported.
