Commodity2005200620072008200920102011
Silica sands & quartz sands, whether or not coloured$199,896$81,421$362,643$539,453$540,169$848,791$767,959
Natural sands other than silica & quartz, whether or not coloured, other th ...$47,816$89,419$182,130$192,846$352,585$351,752$215,068
Total$247,712$170,840$544,773$732,299$892,754$1,200,543$983,027