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 | Results | Candidates |
| --- | --- | --- | --- | --- | --- |
| Oklahoma 1 | Steve Largent | Republican | 1994 | Re-elected | Steve Largent (R) 70% Dan Lowe (D) 30% |
| Oklahoma 2 | Tom Coburn | Republican | 1994 | Retired Democratic gain | Brad Carson (D) 55% Andy Ewing (R) 42% |
| Oklahoma 3 | Wes Watkins | Republican | 1976 , 1996 | Re-elected | Wes Watkins (R) 87% |
| Oklahoma 4 | J. C. Watts | Republican | 1994 | Re-elected | J. C. Watts (R) 65% Larry Weatherford (D) 32% |
| Oklahoma 5 | Ernest Istook | Republican | 1992 | Re-elected | Ernest Istook (R) 69% Garland McWatters (D) 28% |
Question:
How many party were listed for district oklahoma 5?
Answer:
1.0