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:
| District | Incumbent | Party | First elected | Result | Candidates |
| --- | --- | --- | --- | --- | --- |
| Washington 1 | Rick White | Republican | 1994.0 | Re-elected | Rick White (R) 53.74% Jeff Coopersmith (D) 46.26% |
| Washington 3 | Linda Smith | Republican | 1994.0 | Re-elected | Linda Smith (R) 50.18% Brian Baird (D) 49.82% |
| Washington 4 | Doc Hastings | Republican | 1994.0 | Re-elected | Doc Hastings (R) 52.96% Rick Locke (D) 47.04% |
| Washington 5 | George Nethercutt | Republican | 1994.0 | Re-elected | George Nethercutt (R) 55.58% Judy Olson (D) 44.41% |
| Washington 7 | Jim McDermott | Democratic | 1988.0 | Re-elected | Jim McDermott (D) 80.96% Frank Kleschen (R) 19.04% |
Question:
what being the minimum first elected with district being washington 7
Answer:
1988.0