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:
| # | Original title | Directed by | Written by | Original airdate | Prod. code | Viewers |
| --- | --- | --- | --- | --- | --- | --- |
| 1–1 | "Tracy Returns" | Susan Tully | Elly Brewer | 8July2002 | 1.1 | 267000.0 |
| 1–2 | "Dares" | David Skynner | Elly Brewer | 15 July 2002 | 1.2 | 363000.0 |
| 1–3 | "Sneaking in Ben" | Susan Tully | Andy Walker | 22July2002 | 1.3 | 499000.0 |
| 1–4 | "Cam's First Visit" | Susan Tully | Elly Brewer | 29July2002 | 1.4 | 233000.0 |
| 1–5 | "Child Of The Week" | Susan Tully | Elly Brewer | 29July2002 | 1.5 | 278000.0 |
| 1–6 | "The Truth Is Revealed" | Susan Tully | Carol Russell | 5August2002 | 1.6 | 315000.0 |
| 1–7 | "Never Ever Wanna See Him Again" | Susan Tully | Mary Morris | 5August2002 | 1.7 | 221000.0 |
| 1–8 | "1000 Words About Tracy" | Susan Tully | Arnold Evans | 12August2002 | 1.8 | 261000.0 |
| 1–9 | "Bad Peter" | Susan Tully | Mary Morris | 12August2002 | 1.9 | 242000.0 |
| 1–10 | "Cam's Place" | Susan Tully | Andy Walker | 19August2002 | 1.10 | 423000.0 |
| 1–11 | "Dumping Ground Virus" | David Skynner | Elly Brewer | 19August2002 | 1.11 | 444000.0 |
| 1–12 | "Justine's TV" | Susan Tully | Elly Brewer | 26August2002 | 1.12 | 417000.0 |
| 1–13 | "Tracy and Cam Row" | Susan Tully | Elly Brewer | 26August2002 | 1.13 | 526000.0 |
| 1–14 | "Sleepover" | David Skynner | Mary Morris | 3September2002 | 1.14 | 658000.0 |
| 1–15 | "Parent's Evening" | Susan Tully | Laura Summers | 3September2002 | 1.15 | 215000.0 |
| 1–16 | "The Postcard" | Susan Tully | Roger Griffiths | 10September2002 | 1.16 | 215000.0 |
| 1–18 | "Helpful Tracy" | David Skynner | Mary Morris | 10September2002 | 1.17 | 145000.0 |
| 1–19 | "Friend" | David Skynner | Laura Summers | 17September2002 | 1.19 | 815000.0 |
| 1–20 | "Treasure Hunt" | David Skynner | Laura Summers | 24September2002 | 1.20 | 234000.0 |
| 1–21 | "Romance" | David Skynner | Elly Brewer | 24September2002 | 1.21 | 415000.0 |
| 1–22 | "Temporary Care Worker" | David Skynner | Othniel Smith | 1October2002 | 1.22 | 615000.0 |
| 1–23 | "Cut The Weed" | David Skynner | Graham Alborough | 1October2002 | 1.23 | 522000.0 |
| 1–24 | "Need Armbands" | David Skynner | Laura Summers | 8October2002 | 1.24 | 195000.0 |
| 1–25 | "Miss You" | David Skynner | Mary Morris | 8October2002 | 1.25 | 395000.0 |
Question:
When 1.17 is the production code how many air dates are there?
Answer:
1.0