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:
| Lok Sabha | Duration | Name of M.P. | Party Affiliation | Election Year |
| --- | --- | --- | --- | --- |
| Fourth | 1967-71 | P. Sivasankaran | Dravida Munnetra Kazhagam | 1967.0 |
| Fifth | 1971-77 | T.S. Lakshmanan | Dravida Munnetra Kazhagam | 1971.0 |
| Sixth | 1977-80 | Seeralan Jaganathan | All India Anna Dravida Munnetra Kazhagam | 1977.0 |
| Seventh | 1980-84 | T. Nagaratnam | Dravida Munnetra Kazhagam | 1980.0 |
| Eighth | 1984-89 | Margatham Chandrasekar | Indian National Congress | 1984.0 |
| Ninth | 1989-91 | Margatham Chandrasekar | Indian National Congress | 1989.0 |
| Tenth | 1991-96 | Margatham Chandrasekar | Indian National Congress | 1991.0 |
| Elewenth | 1996-98 | T. Nagaratnam | Dravida Munnetra Kazhagam | 1996.0 |
| Twelfth | 1998-99 | K. Venugopal | All India Anna Dravida Munnetra Kazhagam | 1998.0 |
| Thirteenth | 1999-04 | A. Krishnaswamy | Dravida Munnetra Kazhagam | 1999.0 |
| Fourteenth | 2004-09 | A. Krishnaswamy | Dravida Munnetra Kazhagam | 2004.0 |
| Fifteenth | 2009- Incumbent | T. R. Baalu | Dravida Munnetra Kazhagam | 2009.0 |
Question:
What is the Lok Sabha for Dravida Munnetra Kazhagam, in 1999-04?
Answer:
Thirteenth