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 |
| --- | --- | --- | --- | --- | --- | --- |
| 152 | 1 | "Same Time Next Year" | Jay Sandrich | Ehrich Van Lowe | September 20, 1990 | 0701 |
| 153 | 2 | "Bird in the Hand" | Jay Sandrich | Steve Kline & Bryan Winter | September 27, 1990 | 0702 |
| 154 | 3 | "Last Barbecue" | Ellen Falcon | Bernie Kukoff & Janet Leahy | October 4, 1990 | 0704 |
| 155 | 4 | "Period of Adjustment" | Ellen Falcon | Gordon Gartrelle & Lore Kimbrough | October 11, 1990 | 0703 |
| 156 | 5 | "It's All in the Game" | Neema Barnette | Janet Leahy & Bryan Winter | October 18, 1990 | 0706 |
| 158-159 | 7-8 | "Just Thinking About It" | Jay Sandrich | Bernie Kukoff & Ehrich Van Lowe | November 1, 1990 | 0707-0708 |
| 161 | 10 | "You Can Go Home Again" | Oz Scott | Lore Kimbrough & Steve Kline & Bernie Kukoff | November 15, 1990 | 0709 |
| 162 | 11 | "It's a Boy" | Chuck Vinson | Bernie Kukoff & Ehrich Van Lowe | November 29, 1990 | 0710 |
| 163 | 12 | "Clair's Liberation" | John Bowab | Bernie Kukoff & Ehrich Van Lowe | December 6, 1990 | 0713 |
| 164 | 13 | "It's Your Move" | Jay Sandrich | Steve Kline & Bryan Winter | December 13, 1990 | 0714 |
| 165 | 14 | "Theo's Final Final" | Neema Barnette | Elaine Arata | January 3, 1991 | 0715 |
| 166 | 15 | "Attack of the Killer B's" | Art Dielhenn | Elaine Arata & Lore Kimbrough | January 10, 1991 | 0717 |
| 167 | 16 | "Total Control" | Jay Sandrich | Bernie Kukoff & Ehrich Van Lowe | January 31, 1991 | 0718 |
| 168 | 17 | "Adventures in Babysitting" | Oz Scott | Steve Kline | February 7, 1991 | 0719 |
| 169 | 18 | "27 and Still Cooking" | Neema Barnette | Gordon Gartrelle & Janet Leahy | February 14, 1991 | 0716 |
| 170 | 19 | "The Return of the Clairettes" | Neema Barnette | Lisa Albert | February 21, 1991 | 0720 |
| 171 | 20 | "No More Mr. Nice Guy" | Jay Sandrich | Steve Kline & Brayn Winter | February 28, 1991 | 0711 |
| 172 | 21 | "Home Remedies" | Jay Sandrich | Mark St. Germain | March 7, 1991 | 0722 |
| 173 | 22 | "Nightmare on Stigwood Avenue" | Carl Lauten & Malcolm-Jamal Warner | Lore Kimbrough & Steve Kline | March 21, 1991 | 0723 |
| 174 | 23 | "There's Still No Joy in Mudville" | Carl Lauten | Gordon Gartrelle & Matt Robinson | April 4, 1991 | 0721 |
| 175 | 24 | "Cliff and Jake" | Jay Sandrich | Mark St. Germain | April 11, 1991 | 0627 |
| 176 | 25 | "Theo and the Kids: Part 1" | John Bowab | Bernie Kukoff & Ehrich Van Lowe | April 25, 1991 | 0724 |
Question:
the episode directed by art dielhenn was what number in the series? 
Answer:
166.0