Table:
|  | December 31, |  |
| --- | --- | --- |
|  | 2018 | 2019 |
| Current | 154,607 | 171,866 |
| Overdue <30 days | 8,802 | 19,977 |
| Overdue 31-60 days | 2,258 | 2,076 |
| Overdue 61-120 days | 3,507 | 1,599 |
| Overdue >120 days | 4,276 | 4,017 |
| Total | 173,450 | 199,535 |
Paragraphs:
NOTE 9. ACCOUNTS RECEIVABLE
A significant percentage of our accounts receivable is derived from sales to a limited number of large multinational semiconductor device manufacturers located throughout the world. In order to monitor potential expected credit losses, we perform ongoing credit evaluations of our customers’ financial condition.
The carrying amount of accounts receivable is as follows:
Question:
What are the time frames of carrying amount of accounts receivable?
Answer: Current, Overdue <30 days, Overdue 31-60 days, Overdue 61-120 days, Overdue >120 days