accident_chemical_id,facility_accident_chemical_id,facility_accident_id,quantity_released_lbs,percent_weight,chemical_id
1950,100000157297_1_1,100000157297_1,251.0,,3
1951,100000157297_1_2,100000157297_1,,,9
1952,100000157297_1_3,100000157297_1,,,11
1953,100000157297_1_4,100000157297_1,,,4
1954,100000157297_1_5,100000157297_1,,,5
1955,100000157297_1_6,100000157297_1,,,6
1956,100000157297_1_7,100000157297_1,,,76