Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
|  |  | 2018 | 2017 | 2016 |
| --- | --- | --- | --- | --- |
| Passenger revenue: | Passenger travel | $37,457 | $36,152 | $34,278 |
| Passenger revenue: | Loyalty revenue - travel (1) | 3,219 | 2,979 | 2,767 |
| Passenger revenue: | Total passenger revenue | 40,676 | 39,131 | 37,045 |
| Passenger revenue: | Cargo | 1,013 | 890 | 785 |
| Other: | Loyalty revenue - marketing services | 2,352 | 2,124 | 1,872 |
| Other: | Other revenue | 500 | 477 | 440 |
| Other: | Total other revenue | 2,852 | 2,601 | 2,312 |
| Other: | Total operating revenues | $44,541 | $42,622 | $40,142 |
Question:
What is the total passenger revenue by the end of 2018 for American Airlines?
Answer:
40,676