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:
| Player | Att. | Yards | Avg. | Long | FumL |
| --- | --- | --- | --- | --- | --- |
| Clinton Portis | 342.0 | 1487.0 | 4.3 | 31.0 | 3.0 |
| Jason Campbell | 47.0 | 258.0 | 5.5 | 23.0 | 1.0 |
| Ladell Betts | 61.0 | 206.0 | 3.4 | 14.0 | 1.0 |
| Devin Thomas | 3.0 | 53.0 | 17.7 | 29.0 | 0.0 |
| Santana Moss | 1.0 | 27.0 | 27.0 | 27.0 | 1.0 |
| Mike Sellers | 6.0 | 24.0 | 4.0 | 10.0 | 1.0 |
| Shaun Alexander | 11.0 | 24.0 | 2.2 | 8.0 | 0.0 |
| Rock Cartwright | 5.0 | 14.0 | 2.8 | 7.0 | 0.0 |
| Antwaan Randle El | 1.0 | 5.0 | 5.0 | 5.0 | 0.0 |
| Fred Davis | 1.0 | -3.0 | -3.0 | -3.0 | 0.0 |
Question:
Tell me the greatest att with an avg of 4.3
Answer:
342.0