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:
| Episode # | Title | Airdate | Viewers (millions) | Channel 4 weekly rank a |
| --- | --- | --- | --- | --- |
| 24.0 | "How Betty Got Her Grieve Back | October 5, 2007 | 2.82 | 1.0 |
| 25.0 | "Family/Affair" | October 12, 2007 | 2.11 | 18.0 |
| 26.0 | "Betty's Wait Problem" | October 19, 2007 | 2.19 | 9.0 |
| 27.0 | "Grin and Bear It" | October 26, 2007 | 2.11 | 19.0 |
| 28.0 | "A League of Their Own" | November 2, 2007 | 2.19 | 18.0 |
| 29.0 | "Something Wicked This Way Comes" | November 9, 2007 | 2.04 | 24.0 |
| 30.0 | "It's a Nice Day for a Posh Wedding" | November 23, 2007 | 2.42 | 18.0 |
| 31.0 | "I See Me, I.C.U." | November 30, 2007 | 1.92 | 28.0 |
| 32.0 | "Giving Up the Ghost" | December 7, 2007 | 2.16 | 22.0 |
| 33.0 | "Bananas for Betty" | December 14, 2007 | 1.75 | 28.0 |
| 34.0 | "Zero Worship" | September 5, 2008 | 3.12 | 8.0 |
| 35.0 | "Odor in the Court" | September 12, 2008 | 2.12 | 11.0 |
| 36.0 | "A Thousand Words Before Friday" | September 19, 2008 | 1.83 | 22.0 |
| 37.0 | "Twenty Four Candles" | September 26, 2008 | 1.66 | 27.0 |
| 38.0 | "Burning Questions" | October 3, 2008 | 1.7 | 30.0 |
| 39.0 | "Betty's Baby Bump" | October 3, 2008 | 1.65 | 31.0 |
| 40.0 | "The Kids Are Alright" | October 10, 2008 | 1.63 | 30.0 |
| 41.0 | "Jump" | October 17, 2008 | 1.68 | 30.0 |
Question:
What is the average Channel 4 weekly rank for less than 2.19 million viewers on December 7, 2007?
Answer:
22.0