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) |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 59.0 | 1.0 | "Yanks in the U.K. (Part 1)" | Ian Toynton | Hart Hanson & Karine Rosenthal | September3,2008 | 3AKY19 | 9.17 |
| 60.0 | 2.0 | "Yanks in the U.K. (Part 2)" | Ian Toynton | Stephen Nathan & Scott Williams | September3,2008 | 3AKY20 | 10.22 |
| 61.0 | 3.0 | "Man in the Outhouse" | Steven DePaul | Carla Kettner & Mark Lisson | September10,2008 | 3AKY16 | 8.91 |
| 62.0 | 4.0 | "The Finger in the Nest" | Jeff Woolnough | Lyla Oliver | September17,2008 | 3AKY17 | 9.71 |
| 63.0 | 5.0 | "The Perfect Pieces in the Purple Pond" | Jeannot Szwarc | Josh Berman | September24,2008 | 4AKY01 | 9.61 |
| 64.0 | 6.0 | "The Crank in the Shaft" | Steven DePaul | Elizabeth Benjamin | October1,2008 | 3AKY18 | 9.82 |
| 65.0 | 7.0 | "The He in the She" | Craig Ross, Jr. | Karina Csolty | October8,2008 | 3AKY15 | 10.34 |
| 66.0 | 8.0 | "The Skull in the Sculpture" | Allan Kroeker | Janet Lin | November5,2008 | 4AKY03 | 10.09 |
| 67.0 | 9.0 | "The Con Man in the Meth Lab" | Allison Liddi-Brown | Karine Rosenthal | November12,2008 | 4AKY04 | 10.87 |
| 68.0 | 10.0 | "The Passenger in the Oven" | Steven DePaul | Carla Kettner | November19,2008 | 4AKY05 | 10.73 |
| 69.0 | 11.0 | "The Bone That Blew" | Jessica Landaw | Carla Kettner | November26,2008 | 4AKY02 | 9.76 |
| 70.0 | 12.0 | "Double Trouble in the Panhandle" | Dwight Little | Lyla Oliver | January22,2009 | 4AKY06 | 9.97 |
| 71.0 | 13.0 | "Fire in the Ice" | Chad Lowe | Scott Williams | January22,2009 | 4AKY07 | 7.52 |
| 72.0 | 14.0 | "The Hero in the Hold" | Ian Toynton | Janet Lin & Karine Rosenthal | February5,2009 | 4AKY08 | 10.76 |
| 73.0 | 15.0 | "The Princess and the Pear" | Steven DePaul | Matthew Donlan & Jeremy Martin | February19,2009 | 4AKY09 | 9.50 |
| 74.0 | 16.0 | "The Bones That Foam" | David Boreanaz | Elizabeth Benjamin | March12,2009 | 4AKY10 | 9.55 |
| 75.0 | 17.0 | "The Salt in the Wounds" | Steven DePaul | Carla Kettner & Josh Berman | March19,2009 | 4AKY11 | 10.19 |
| 76.0 | 18.0 | "The Doctor in the Den" | Ian Toynton | Janet Lin & Karine Rosenthal | April2,2009 | 4AKY12 | 8.98 |
| 77.0 | 19.0 | "The Science in the Physicist" | Brad Turner | Karina Csolty | April9,2009 | 4AKY13 | 8.88 |
| 78.0 | 20.0 | "Cinderella in the Cardboard" | Steven DePaul | Carla Kettner & Josh Berman | April15,2009 | 4AKY14 | 10.76 |
| 79.0 | 21.0 | "Mayhem on a Cross" | Jeff Woolnough | Dean Lopata | April16,2009 | 4AKY15 | 8.72 |
| 80.0 | 22.0 | "The Double Death of the Dearly Departed" | Milan Cheylov | Craig Silverstein | April20,2009 | 4AKY16 | 8.38 |
| 81.0 | 23.0 | "The Girl in the Mask" | Ian Toynton | Michael Peterson | April23,2009 | 4AKY17 | 8.22 |
| 82.0 | 24.0 | "The Beaver in the Otter" | Brad Turner | Scott Williams | April30,2009 | 4AKY18 | 8.83 |
| 83.0 | 25.0 | "The Critic in the Cabernet" | Kevin Hooks | Stephen Nathan | May7,2009 | 4AKY19 | 8.62 |
Question:
What is the episode number of the episode with a production code of 4aky14?
Answer:
20.0