Commodity200520062007200820092011
Silica sands & quartz sands, whether or not coloured$484,034$431,440$838,323$799,550$538,727$529,685
Natural sands other than silica & quartz, whether or not coloured, other th ...$77,290$51,492$87,171$70,734$52,446$36,093
Total$561,324$482,932$925,494$870,284$591,173$565,778