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:
| Rank | Athlete | Qual | Final | Total | Notes |
| --- | --- | --- | --- | --- | --- |
|  | Silvia Sperber (FRG) | 590 | 95.6 | 685.6 | OR |
|  | Vesela Letcheva (BUL) | 583 | 100.2 | 683.2 |  |
|  | Valentina Cherkasova (URS) | 586 | 95.4 | 681.4 |  |
| 4 | Katja Klepp (GDR) | 584 | 96.5 | 680.5 |  |
| 5 | Sharon Bowes (CAN) | 584 | 96.5 | 680.5 |  |
| 6 | Anna Maloukhina (URS) | 585 | 93.4 | 678.4 |  |
| 7 | Launi Meili (USA) | 582 | 94.5 | 676.5 |  |
| 8 | Anita Karlsson (SWE) | 583 | 93.4 | 676.4 |  |
Question:
what is the difference in qualifying for sharon bowes and silvia sperber?
Answer:
6