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 season | No. in series | Title | Canadian airdate | US airdate | Production code |
| --- | --- | --- | --- | --- | --- |
| 1.0 | 120.0 | "Standing in the Dark" Part One | 14 January 2008 | 5 October 2007 | 701.0 |
| 2.0 | 121.0 | "Standing in the Dark" Part Two | 21 January 2008 | 5 October 2007 | 702.0 |
| 3.0 | 122.0 | "Love is a Battlefield" | 19 May 2008 | 12 October 2007 | 703.0 |
| 4.0 | 123.0 | "It's Tricky" | 28 January 2008 | 19 October 2007 | 704.0 |
| 5.0 | 124.0 | "Death or Glory" Part One | 4 February 2008 | 2 November 2007 | 705.0 |
| 6.0 | 125.0 | "Death or Glory" Part Two | 11 February 2008 | 9 November 2007 | 706.0 |
| 7.0 | 126.0 | "We Got the Beat" | 18 February 2008 | 16 November 2007 | 707.0 |
| 8.0 | 127.0 | "Jessie's Girl" | 25 February 2008 | 8 February 2008 | 708.0 |
| 9.0 | 128.0 | "Hungry Eyes" | 3 March 2008 | 15 February 2008 | 709.0 |
| 10.0 | 129.0 | "Pass the Dutchie" | 10 March 2008 | 22 February 2008 | 710.0 |
| 11.0 | 130.0 | "Owner of a Lonely Heart" | 17 March 2008 | 29 February 2008 | 711.0 |
| 12.0 | 131.0 | "Live to Tell" | 24 March 2008 | 7 March 2008 | 712.0 |
| 13.0 | 132.0 | "Bust a Move" Part One | 31 March 2008 | 4 April 2008 | 713.0 |
| 14.0 | 133.0 | "Bust a Move" Part Two | 7 April 2008 | 4 April 2008 | 714.0 |
| 15.0 | 134.0 | "Got My Mind Set on You" | 14 April 2008 | 11 April 2008 | 715.0 |
| 16.0 | 135.0 | "Sweet Child o' Mine" | 21 April 2008 | 18 April 2008 | 716.0 |
| 17.0 | 136.0 | "Talking in Your Sleep" | 28 April 2008 | 9 May 2008 | 717.0 |
| 18.0 | 137.0 | "Another Brick in the Wall" | 5 May 2008 | 25 April 2008 | 718.0 |
| 19.0 | 138.0 | "Broken Wings" | 12 May 2008 | 11 July 2008 | 719.0 |
| 20.0 | 139.0 | "Ladies' Night" | 26 May 2008 | 18 July 2008 | 720.0 |
| 21.0 | 140.0 | "Everything She Wants" | 2 June 2008 | 11 July 2008 | 721.0 |
| 22.0 | 141.0 | "Don't Stop Believin'" | 9 June 2008 | 25 July 2008 | 722.0 |
| 23.0 | 142.0 | "If This Is It" | 16 June 2008 | 8 August 2008 | 723.0 |
Question:
The episode titled "don't stop believin'" was what highest number of the season?
Answer:
22.0