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. | # | Title | Directed by | Written by | U.S. viewers (million) | Rank (week) | Original air date |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 49.0 | 3.0 | " Informed Consent " | Laura Innes | David Foster | 13.67 | 21.0 | September19,2006 |
| 50.0 | 4.0 | " Lines in the Sand " | Newton Thomas Sigel | David Hoselton | 14.52 | 16.0 | September26,2006 |
| 51.0 | 5.0 | " Fools for Love " | David Platt | Peter Blake | 14.18 | 18.0 | October31,2006 |
| 52.0 | 6.0 | " Que Será Será " | Deran Sarafian | Thomas L. Moran | 16.11 | 13.0 | November7,2006 |
| 53.0 | 7.0 | " Son of Coma Guy " | Dan Attias | Doris Egan | 14.60 | 19.0 | November14,2006 |
| 54.0 | 8.0 | " Whac-A-Mole " | Daniel Sackheim | Pamela Davis | 15.20 | 11.0 | November21,2006 |
| 55.0 | 9.0 | " Finding Judas " | Deran Sarafian | Sara Hess | 17.30 | 5.0 | November28,2006 |
| 56.0 | 10.0 | " Merry Little Christmas " | Tony To | Liz Friedman | 11.77 | 18.0 | December12,2006 |
| 57.0 | 11.0 | " Words and Deeds " | Daniel Sackheim | Leonard Dick | 17.78 | 5.0 | January9,2007 |
| 58.0 | 12.0 | " One Day, One Room " | Juan J. Campanella | David Shore | 27.34 | 7.0 | January30,2007 |
| 59.0 | 13.0 | " Needle in a Haystack " | Peter O'Fallon | David Foster | 24.88 | 4.0 | February6,2007 |
| 60.0 | 14.0 | " Insensitive " | Deran Sarafian | Matthew V. Lewis | 25.99 | 3.0 | February13,2007 |
| 61.0 | 15.0 | " Half-Wit " | Katie Jacobs | Lawrence Kaplow | 24.40 | 4.0 | March6,2007 |
| 62.0 | 16.0 | " Top Secret " | Deran Sarafian | Thomas L. Moran | 20.80 | 4.0 | March27,2007 |
| 63.0 | 17.0 | " Fetal Position " | Matt Shakman | Russel Friend & Garrett Lerner | 20.35 | 4.0 | April3,2007 |
| 64.0 | 18.0 | " Airborne " | Elodie Keene | David Hoselton | 21.57 | 4.0 | April10,2007 |
| 65.0 | 19.0 | " Act Your Age " | Daniel Sackheim | Sara Hess | 22.41 | 3.0 | April17,2007 |
| 66.0 | 20.0 | " House Training " | Paul McCrane | Doris Egan | 20.81 | 3.0 | April24,2007 |
| 67.0 | 21.0 | " Family " | David Straiton | Liz Friedman | 21.13 | 4.0 | May1,2007 |
| 68.0 | 22.0 | " Resignation " | Martha Mitchell | Pamela Davis | 21.36 | 3.0 | May8,2007 |
| 69.0 | 23.0 | " The Jerk " | Daniel Sackheim | Leonard Dick | 21.19 | 4.0 | May15,2007 |
Question:
How many million viewers did episode number 63 have?
Answer:
20.35