Commodity20072008200920102011
Railway/tramway sleepers (cross-ties) of wood, not impregnated $816$17,970$241 
Railway/tramway sleepers (cross-ties) of wood, other than those not impregn ...$3,191$14,272$301$16,077$6,987
Total$3,191$15,088$18,271$16,318$6,987