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:
| Publication | Score | Review |
| --- | --- | --- |
| 1up.com | B | → |
| Weekly Famitsu | 36 of 40 | print |
| GamePro.com | 6.5 of 10 | → |
| GameSpot | 7.5 of 10 | → |
| Hardcore Gamer Magazine | 9.5 of 10 | print |
| IGN.com | 7.9 of 10 | → |
| Nintendo Power | 8 of 10 | print |
| Play Magazine | 7 of 10 | print |
| Metacritic | 76 of 100 | → |
Question:
how many publications used a scale-of-one-to-ten scoring system?
Answer:
6