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:
| Air Date | Timeslot | Rating | Share | 18-49 | Viewers | Weekly Rank |
| --- | --- | --- | --- | --- | --- | --- |
| February 22, 2008 | 9:00 P.M. | 4.6 | 8.0 | 2.4/7 | 7.44 | TBA |
| February 29, 2008 | 8:00 P.M. | 3.4 | 6.0 | 1.3/4 | 5.1 | TBA |
| March 7, 2008 | 8:00 P.M. | 3.2 | 6.0 | 1.4/5 | 4.73 | 75 |
| March 14, 2008 | 8:00 P.M. | 3.2 | 6.0 | 1.4/5 | 4.81 | 76 |
| March 21, 2008 | 8:00 P.M. | 3.5 | 7.0 | 1.3/5 | 5.15 | 64 |
| March 28, 2008 | 8:00 P.M. | 3.5 | 7.0 | 1.3/5 | 5.02 | 69 |
| April 4, 2008 | 8:00 P.M. | 3.0 | 6.0 | 1.3/4 | 4.51 | 73 |
| April 11, 2008 | 8:00 P.M. | 2.8 | 5.0 | 1.0/4 | 4.06 | 79 |
Question:
What is the average share at 8:00 p.m., and an 18-49 of 1.3/4 with an air date of April 4, 2008?
Answer:
6.0