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:
| Driver | Team | Laps | Time/Retired | Grid |
| --- | --- | --- | --- | --- |
| Dario Franchitti | Team Green | 65.0 | 1:58:40.726 | 1.0 |
| Max Papis | Team Rahal | 65.0 | +2.6 secs | 11.0 |
| Adrián Fernández | Patrick Racing | 65.0 | +7.4 secs | 7.0 |
| Bryan Herta | Team Rahal | 65.0 | +10.4 secs | 2.0 |
| Michael Andretti | Newman-Haas Racing | 65.0 | +10.4 secs | 5.0 |
| Tony Kanaan | Forsythe Championship Racing | 65.0 | +11.4 secs | 8.0 |
| Paul Tracy | Team Green | 65.0 | +11.7 secs | 4.0 |
| Robby Gordon | Team Gordon | 65.0 | +19.9 secs | 22.0 |
| Scott Pruett | Arciero-Wells Racing | 65.0 | +21.3 secs | 3.0 |
| Gualter Salles | Bettenhausen Motorsports | 65.0 | +26.1 secs | 27.0 |
| Jan Magnussen | Patrick Racing | 65.0 | +30.7 secs | 19.0 |
| Michel Jourdain, Jr. | Payton/Coyne Racing | 65.0 | +33.0 secs | 18.0 |
| Cristiano da Matta | Arciero-Wells Racing | 63.0 | Mechanical | 10.0 |
| Memo Gidley | Payton/Coyne Racing | 60.0 | Mechanical | 21.0 |
| Andrea Montermini | All American Racers | 60.0 | Mechanical | 19.0 |
| Juan Pablo Montoya | Chip Ganassi Racing | 48.0 | Contact | 6.0 |
| Greg Moore | Forsythe Championship Racing | 46.0 | Mechanical | 12.0 |
| Jimmy Vasser | Chip Ganassi Racing | 44.0 | Mechanical | 17.0 |
| Mark Blundell | PacWest Racing | 33.0 | Contact | 23.0 |
| Naoki Hattori | Walker Racing | 33.0 | Contact | 20.0 |
| Hélio Castroneves | Hogan Racing | 28.0 | Mechanical | 16.0 |
| Al Unser, Jr. | Team Penske | 22.0 | Mechanical | 26.0 |
| Richie Hearn | Della Penna Motorsports | 21.0 | Mechanical | 24.0 |
| Patrick Carpentier | Forsythe Championship Racing | 20.0 | Contact | 15.0 |
| Christian Fittipaldi | Newman-Haas Racing | 3.0 | Fire | 13.0 |
| Maurício Gugelmin | PacWest Racing | 1.0 | Mechanical | 9.0 |
| Gil de Ferran | Walker Racing | 0.0 | Contact | 14.0 |
Question:
What is the mean number of laps when the grid is less than 19 and time/retired is +21.3 secs?
Answer:
65.0