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:
| No. in series | No. in season | Title | Directed by | Written by | Original air date | Production code | U.S. viewers (millions) |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 203.0 | 1.0 | "Trials" | David Platt | Dawn DeNoon | September 23, 2008 | 10002.0 | 9.52 |
| 204.0 | 2.0 | "Confession" | Arthur W. Forney | Judith McCreary | September 30, 2008 | 10003.0 | 10.22 |
| 205.0 | 3.0 | "Swing" | David Platt | Amanda Green | October 14, 2008 | 10004.0 | 9.40 |
| 206.0 | 4.0 | "Lunacy" | Peter Leto | Daniel Truly | October 21, 2008 | 10001.0 | 9.35 |
| 207.0 | 5.0 | "Retro" | Peter Leto | Jonathan Greene & Joshua Kotcheff | October 28, 2008 | 10005.0 | 9.20 |
| 208.0 | 6.0 | "Babes" | David Platt | Daniel Truly | November 11, 2008 | 10006.0 | 9.42 |
| 209.0 | 7.0 | "Wildlife" | Peter Leto | Mick Betancourt | November 18, 2008 | 10008.0 | 10.18 |
| 210.0 | 8.0 | "Persona" | Helen Shaver | Amanda Green | November 25, 2008 | 10009.0 | 8.55 |
| 211.0 | 9.0 | "PTSD" | Eriq La Salle | Judith McCreary | December 2, 2008 | 10007.0 | 10.31 |
| 212.0 | 10.0 | "Smut" | Chris Eyre | Kam Miller | December 9, 2008 | 10010.0 | 10.93 |
| 213.0 | 11.0 | "Stranger" | David Platt | Dawn DeNoon | January 6, 2009 | 10011.0 | 10.64 |
| 214.0 | 12.0 | "Hothouse" | Peter Leto | Charley Davis | January 13, 2009 | 10012.0 | 9.66 |
| 215.0 | 13.0 | "Snatched" | David Platt | Mick Betancourt | February 3, 2009 | 10013.0 | 10.31 |
| 216.0 | 14.0 | "Transitions" | Peter Leto | Ken Storer | February 17, 2009 | 10014.0 | 9.45 |
| 217.0 | 15.0 | "Lead" | David Platt | Jonathan Greene | March 10, 2009 | 10015.0 | 11.03 |
| 218.0 | 16.0 | "Ballerina" | Peter Leto | Daniel Truly | March 17, 2009 | 10016.0 | 10.58 |
| 219.0 | 17.0 | "Hell" | David Platt | Amanda Green | March 31, 2009 | 10017.0 | 9.34 |
| 220.0 | 18.0 | "Baggage" | Chris Zalla | Judith McCreary | April 7, 2009 | 10018.0 | 9.08 |
| 221.0 | 19.0 | "Selfish" | David Platt | Mick Betancourt | April 28, 2009 | 10019.0 | 10.23 |
| 222.0 | 20.0 | "Crush" | Peter Leto | Jonathan Greene | May 5, 2009 | 10020.0 | 9.79 |
| 223.0 | 21.0 | "Liberties" | Juan J. Campanella | Dawn DeNoon | May 19, 2009 | 10021.0 | 6.73 |
Question:
What's the series number of the episode seen by 9.35 million people in the US?
Answer:
206.0