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:
| Series # | Season # | Title | Story by | Teleplay by | Directed by | Original air date |
| --- | --- | --- | --- | --- | --- | --- |
| 14.0 | 1.0 | " Ebb Tide " | David Simon & Ed Burns | David Simon | Ed Bianchi | June1,2003 |
| 15.0 | 2.0 | " Collateral Damage " | David Simon & Ed Burns | David Simon | Ed Bianchi | June8,2003 |
| 16.0 | 3.0 | " Hot Shots " | David Simon & Ed Burns | David Simon | Elodie Keene | June15,2003 |
| 17.0 | 4.0 | " Hard Cases " | David Simon & Joy Lusco | Joy Lusco | Elodie Keene | June22,2003 |
| 18.0 | 5.0 | " Undertow " | David Simon & Ed Burns | Ed Burns | Steve Shill | June29,2003 |
| 19.0 | 6.0 | " All Prologue " | David Simon & Ed Burns | David Simon | Steve Shill | July6,2003 |
| 20.0 | 7.0 | " Backwash " | David Simon & Rafael Alvarez | Rafael Alvarez | Thomas J. Wright | July13,2003 |
| 21.0 | 8.0 | " Duck and Cover " | David Simon & George Pelecanos | George Pelecanos | Dan Attias | July27,2003 |
| 22.0 | 9.0 | " Stray Rounds " | David Simon & Ed Burns | David Simon | Tim Van Patten | August3,2003 |
| 23.0 | 10.0 | " Storm Warnings " | David Simon & Ed Burns | Ed Burns | Rob Bailey | August10,2003 |
| 24.0 | 11.0 | " Bad Dreams " | David Simon & George Pelecanos | George Pelecanos | Ernest Dickerson | August17,2003 |
Question:
What was the series number of the episode directed by Rob Bailey?
Answer:
23.0