December 31, 2017 | | | | | | | | | | | | | | | | | | | | | | | |
Age of trade receivables | | ||||||||||||||||||||||
Days | | Non- past due | | 1 to 30 | | 31 to 60 | | 61 to 90 | | 91 to 120 | | 121 to 150 | | 151 to 180 | | 181 to 210 | | 211 to 250 | | More than 250 | | Total | |
| | | | | | | | | | | | | | | | | | | | | | | |
ThU.S.$ | | 662,963 | | 39,459 | | 551 | | 955 | | 50 | | 34 | | 2,238 | | 56 | | 97 | | 12,312 | | 718,715 | |
% | | 92.20% | | 5.50% | | 0.10% | | 0.10% | | 0.00% | | 0.00% | | 0.30% | | 0.00% | | 0.00% | | 1.70% | | 100% | |
December 31, 2016 | | | | | | | | | | | | | | | | | | | | | | | |
Age of trade receivables | | ||||||||||||||||||||||
Days | | Non- past due | | 1 to 30 | | 31 to 60 | | 61 to 90 | | 91 to 120 | | 121 to 150 | | 151 to 180 | | 181 to 210 | | 211 to 250 | | More than 250 | | Total | |
| | | | | | | | | | | | | | | | | | | | | | | |
ThU.S.$ | | 564,378 | | 31,106 | | 257 | | 881 | | 39 | | 18 | | 21 | | 11 | | 64 | | 14,319 | | 611,094 | |
% | | 92.40% | | 5.10% | | 0.00% | | 0.10% | | 0.00% | | 0.00% | | 0.00% | | 0.00% | | 0.00% | | 2.30% | | 100% | |