Commodity2005200620072008200920102011
Silica sands & quartz sands, whether or not coloured$89,882$176,881$170,074$392,123$315,981$508,674$510,208
Natural sands other than silica & quartz, whether or not coloured, other th ...$31,256$14,213$28,438$3,718$25,465$72,033$70,358
Total$121,138$191,094$198,512$395,841$341,446$580,707$580,566