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:
|  | Increase (decrease) in 2017 from 2016 (a): | Increase (decrease) in 2017 from 2016 (a): | Increase (decrease) in 2017 from 2016 (a): | Increase (decrease) in 2017 from 2016 (a): | Increase (decrease) in 2017 from 2016 (a): |  |
| --- | --- | --- | --- | --- | --- | --- |
|  | Domestic | Atlantic | Pacific | Latin | Total | Increase (decrease) in 2017 from 2016 (a): |
|  |  |  |  |  |  |  |
|  |  |  |  |  |  | Domestic |
|  |  |  |  |  |  | Atlantic |
|  |  |  |  |  |  | Pacific |
|  |  |  |  |  |  | Latin |
|  |  |  |  |  |  | Total |
| Passenger revenue (in millions) | $885 | $117 | $(144) | $173 | $1,031 |  |
| Passenger revenue | 4.4 % | 2.0% | (3.2)% | 5.8% | 3.1 % |  |
| Average fare per passenger | 0.2 % | 1.5% | (0.1)% | 4.0% | (0.3)% |  |
| Yield | (0.3)% | 1.1% | (2.4)% | 4.1% | 0.2 % |  |
| PRASM | (0.5)% | 1.6% | (6.0)% | 3.3% | (0.4)% |  |
| Passengers | 4.2 % | 0.5% | (3.1)% | 1.7% | 3.4 % |  |
| RPMs (traffic) | 4.7 % | 0.9% | (0.9)% | 1.6% | 2.8 % |  |
| ASMs (capacity) | 4.9 % | 0.4% | 2.9 % | 2.4% | 3.5 % |  |
| Passenger load factor (points) | (0.2) | 0.4 | (3.0) | (0.7) | (0.5) |  |
| 11 |  |  |  |  |  | (a) See Part II, Item 6, Selected Financial Data, of this report for the definition of these statistics. |
Question:
By how much did United's domestic passenger revenue per available seat mile change between 2016 and 2017?
Answer:
(0.5)%