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 | Nation | Gold | Silver | Bronze | Total |
| --- | --- | --- | --- | --- | --- |
| 1 | Canada (CAN) | 16.0 | 16.0 | 11.0 | 43.0 |
| 2 | United States (USA) | 7.0 | 6.0 | 12.0 | 25.0 |
| 3 | Guatemala (GUA) | 1.0 | 2.0 | 3.0 | 6.0 |
| 4 | Jamaica (JAM) | 1.0 | 0.0 | 5.0 | 6.0 |
| 5 | Cuba (CUB) | 0.0 | 1.0 | 0.0 | 1.0 |
| 6 | Peru (PER) | 0.0 | 0.0 | 14.0 | 14.0 |
| 7 | Mexico (MEX) | 0.0 | 0.0 | 3.0 | 3.0 |
| 8 | Brazil (BRA) | 0.0 | 0.0 | 2.0 | 2.0 |
| Total | Total | 25.0 | 25.0 | 50.0 | 100.0 |
Question:
Tell me the least silver for total less than 6 and rank of 8
Answer:
0.0