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:
|  |  | 2017 | 2016 (a) | 2015 | 2014 | 2013 |
| --- | --- | --- | --- | --- | --- | --- |
| Air Group Marketed Revenues |  | 94% | 92% | 90% | 91% | 90% |
| Codeshare Agreements: | American Airlines | 1% | 3% | 4% | 3% | 2% |
| Codeshare Agreements: | Delta Air Lines | 1% | 1% | 2% | 2% | 4% |
| Codeshare Agreements: | Others | 1% | 1% | 1% | 1% | 1% |
| Interline Agreements: | Domestic Interline | 1% | 2% | 2% | 2% | 2% |
| Interline Agreements: | International Interline | 2% | 1% | 1% | 1% | 1% |
| Total Operating Revenue |  | 100% | 100% | 100% | 100% | 100% |
Question:
What percentage of Alaska's 2017 operating revenue is due to interline agreements with other airlines in the US?
Answer:
2%