MORE than three million tonnes of wheat have been exported since the new deregulated system started in October last year.
Fourteen of the 22 accredited companies have exported wheat under the new system.
And prices received by growers have varied by about $15 a tonne, within a range set by export and import parity prices.
The figures were presented to a senate estimates hearing on Monday by Wheat Exports Australia chief executive Peter Woods, amid concerns about bottlenecks experienced in the NSW grain transport system.
Mr Woods said there were some initial teething problems "but things were going relatively smoothly", given it was the biggest export program for some time.