accident_chemical_id,facility_accident_chemical_id,facility_accident_id,quantity_released_lbs,percent_weight,chemical_id
1957,100000157297_2_1,100000157297_2,185.0,,3
1958,100000157297_2_2,100000157297_2,,,9
1959,100000157297_2_3,100000157297_2,,,5
1960,100000157297_2_4,100000157297_2,,,6