Sub-Chapter200520062007200820092010
Salt (including table salt)$121,599$127,426$128,550$149,537$208,956$290,159
Natural sands of all kinds $23,099 $562$50,892 
Other clays (not including expanded clays of heading 68.06), andalusite, ky ...   $886$3,704 
Natural calcium phosphates    $5,902 
Siliceous fossil meals     $2
Granite, porphyry, basalt, sandstone and other stone     $5,538
Pebbles, gravel, broken or crushed stone$47,776$75$8,968$180,191$92,175$11,375
Dolomite, whether or not calcined or sintered     $12
Natural magnesium carbonate (magnesite)    $4,914 
Gypsum; anhydrite; plasters$2,197,169$1,843,381$1,235,648$4,082,482$849,401$1,052,531
Limestone flux; limestone$2,362,982$2,187,562$1,003,805$1,190,976$1,079,619$940,400
Portland cement, aluminous cement, slag cement$30 $125$147,941$7,024,125$7,083,994
Asbestos.    $75 
Natural steatite, whether or not roughly trimmed   $6,570$1,968$128
Mineral substances $2,085  $4,238$342,925
Total$4,729,556$4,183,628$2,377,096$5,759,145$9,325,969$9,727,064