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:
| Saddle cloth | Horse | Trainer | Jockey | Weight (kg) | Barrier [b ] | Placing |
| --- | --- | --- | --- | --- | --- | --- |
| 1.0 | Viewed | Bart Cummings | Brad Rawiller | 58.0 | 9.0 | 7 |
| 2.0 | C'est La Guerre (NZ) | John Sadler (NZ) | Nicholas Hall | 55.5 | 7.0 | 8 |
| 3.0 | Fiumicino(NZ) | M,W & J Hawkes | Steven King | 55.5 | 24.0 | 22 |
| 4.0 | Master O'Reilly (NZ) | Danny O'Brien | Vlad Duric | 55.0 | 16.0 | 4 |
| 5.0 | Mourilyan(IRE) | Herman Brown ( RSA ) | Glyn Schofield | 54.5 | 14.0 | 3 |
| 6.0 | Roman Emperor(NZ) | Bart Cummings | Hugh Bowman | 54.0 | 15.0 | 21 |
| 7.0 | Ista Kareem(NZ) | Colin Little | Luke Nolen | 53.5 | 23.0 | 15 |
| 8.0 | Crime Scene(IRE) | Saeed bin Suroor ( UAE ) | Kerrin McEvoy | 53.0 | 11.0 | 2 |
| 9.0 | Munsef(GB) | Ian Williams | Zac Purton | 53.0 | 5.0 | 12 |
| 10.0 | Zavite(NZ) | Anthony Cummings | Mark Zahra | 53.0 | 3.0 | 19 |
| 11.0 | Alcopop | Jake Stephens | Dom Tournuer | 52.5 | 12.0 | 6 |
| 12.0 | Harris Tweed(NZ) | Murray & Bjorn Baker | Craig Newitt | 52.5 | 20.0 | 5 |
| 13.0 | Kibbutz(NZ) | Jarrod McLean | Chris Symons | 52.5 | 8.0 | 9 |
| 14.0 | Newport | Paul Perry | Peter Wells | 52.5 | 18.0 | 10 |
| 15.0 | Warringah(GB) | Chris Waller | Damien Oliver | 52.5 | 8.0 | 23 |
| 16.0 | Gallions Reach(NZ) | Richard Yuill | Dwayne Dunn | 52.0 | 6.0 | 13 |
| 17.0 | Spin Around | Steven Cooper (NZ) | Mark Du Plessis | 52.0 | 4.0 | 20 |
| 18.0 | Basaltico(IRE) | Luca Cumani (GB) | Danny Nikolic | 51.5 | 10.0 | 18 |
| 19.0 | Capecover(NZ) | Alexander R Fieldes | Noel Harris | 51.5 | 19.0 | 17 |
| 20.0 | Daffodil(NZ) | Kevin Gray | Chris Munce | 51.5 | 21.0 | 11 |
| 21.0 | Shocking | Mark Kavanagh | Corey Brown | 51.0 | 22.0 | 1 |
| 22.0 | Allez Wonder | Bart Cummings | Michelle Payne | 50.5 | 13.0 | 16 |
| 23.0 | Changingoftheguard(IRE) | David A. Hayes | Glen Boss | 50.5 | 1.0 | SCR |
Question:
What was the placing when the jockey was Damien Oliver?
Answer:
23.0