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 | U.S. viewers (millions) |
| --- | --- | --- | --- | --- | --- | --- |
| 103.0 | 1.0 | " Good Mourning " | Ed Ornelas | Krista Vernoff | September24,2009 | 17.03 |
| 104.0 | 2.0 | " Goodbye " | Bill D'Elia | Krista Vernoff | September24,2009 | 17.03 |
| 105.0 | 3.0 | " I Always Feel Like Somebody's Watchin' Me " | Michael Pressman | Tony Phelan & Joan Rater | October1,2009 | 15.69 |
| 106.0 | 4.0 | " Tainted Obligation " | Tom Verica | Jenna Bans | October8,2009 | 14.13 |
| 107.0 | 5.0 | " Invasion " | Tony Phelan | Mark Wilding | October15,2009 | 13.79 |
| 108.0 | 6.0 | " I Saw What I Saw " | Allison Liddi-Brown | William Harper | October22,2009 | 15.40 |
| 109.0 | 7.0 | " Give Peace a Chance " | Chandra Wilson | Peter Nowalk | October29,2009 | 13.74 |
| 110.0 | 8.0 | " Invest in Love " | Jessica Yu | Stacy McKee | November5,2009 | 13.95 |
| 111.0 | 9.0 | " New History " | Rob Corn | Allan Heinberg | November12,2009 | 14.87 |
| 112.0 | 10.0 | " Holidaze " | Robert Berlinger | Krista Vernoff | November19,2009 | 14.07 |
| 113.0 | 11.0 | " Blink " | Randy Zisk | Debora Cahn | January14,2010 | 12.78 |
| 114.0 | 12.0 | " I Like You So Much Better When You're Naked " | Donna Deitch | Tony Phelan & Joan Rater | January21,2010 | 12.70 |
| 115.0 | 13.0 | " State of Love and Trust " | Jeannot Szwarc | Stacy McKee | February4,2010 | 12.55 |
| 116.0 | 14.0 | " Valentine's Day Massacre " | Stephen Cragg | William Harper | February11,2010 | 12.74 |
| 117.0 | 15.0 | " The Time Warp " | Rob Corn | Zoanne Clack | February18,2010 | 10.27 |
| 118.0 | 16.0 | " Perfect Little Accident " | Bill D'Elia | Peter Nowalk | March4,2010 | 11.83 |
| 119.0 | 17.0 | " Push " | Chandra Wilson | Debora Cahn | March11,2010 | 10.94 |
| 120.0 | 18.0 | " Suicide is Painless " | Jeannot Szwarc | Tony Phelan & Joan Rater | March25,2010 | 11.57 |
| 121.0 | 19.0 | " Sympathy for the Parents " | Debbie Allen | Allan Heinberg | April1,2010 | 9.87 |
| 122.0 | 20.0 | " Hook, Line and Sinner " | Tony Phelan | Meg Marinis | April29,2010 | 10.47 |
| 123.0 | 21.0 | " How Insensitive " | Tom Verica | William Harper | May6,2010 | 11.03 |
| 124.0 | 22.0 | " Shiny Happy People " | Ed Ornelas | Zoanne Clack & Peter Nowalk | May13,2010 | 11.05 |
| 125.0 | 23.0 | " Sanctuary " | Stephen Cragg | Shonda Rhimes | May20,2010 | 13.93 |
Question:
How many episodes in the series are also episode 18 in the season?
Answer:
1.0