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:
| Rd # | Pick # | Player | Team (League) | Reg GP | Pl GP |
| --- | --- | --- | --- | --- | --- |
| 1.0 | 23.0 | Ryan Kesler | Ohio State University ( NCAA ) | 578.0 | 57.0 |
| 2.0 | 60.0 | Marc-Andre Bernier | Halifax Mooseheads ( QMJHL ) | 0.0 | 0.0 |
| 4.0 | 111.0 | Brandon Nolan | Oshawa Generals ( OHL ) | 0.0 | 0.0 |
| 4.0 | 128.0 | Ty Morris | St. Albert Saints ( AJHL ) | 0.0 | 0.0 |
| 5.0 | 160.0 | Nicklas Danielsson | Brynäs IF ( Swe ) | 0.0 | 0.0 |
| 6.0 | 190.0 | Chad Brownlee | Vernon Vipers ( BCHL ) | 0.0 | 0.0 |
| 7.0 | 222.0 | François-Pierre Guenette | Halifax Mooseheads ( QMJHL ) | 0.0 | 0.0 |
| 8.0 | 252.0 | Sergei Topol | Avangard Omsk ( Rus ) | 0.0 | 0.0 |
| 8.0 | 254.0 | Nathan McIver | Toronto St. Michael's Majors ( OHL ) | 18.0 | 0.0 |
| 9.0 | 285.0 | Matthew Hansen | Seattle Thunderbirds ( WHL ) | 0.0 | 0.0 |
Question:
What's the highest Pl GP with a Reg GP over 18?
Answer:
57.0