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 | United States | 5 | 6 | 5 | 16 |
| 2 | Jamaica | 4 | 1 | 1 | 6 |
| 3 | Netherlands | 2 | 0 | 0 | 2 |
| 4 | Bahamas | 1 | 1 | 0 | 2 |
| 5 | Ukraine | 1 | 0 | 1 | 2 |
| 6 | East Germany | 1 | 0 | 0 | 1 |
|  | Greece | 1 | 0 | 0 | 1 |
|  | Soviet Union | 1 | 0 | 0 | 1 |
| 9 | Ivory Coast | 0 | 2 | 0 | 2 |
|  | United Kingdom | 0 | 2 | 0 | 2 |
| 11 | Belgium | 0 | 1 | 1 | 2 |
| 12 | Bulgaria | 0 | 1 | 0 | 1 |
|  | Russia | 0 | 1 | 0 | 1 |
|  | Germany | 0 | 1 | 0 | 1 |
| 15 | Canada | 0 | 0 | 2 | 2 |
|  | France | 0 | 0 | 2 | 2 |
| 17 | Belarus | 0 | 0 | 1 | 1 |
|  | Cuba | 0 | 0 | 1 | 1 |
|  | Gabon | 0 | 0 | 1 | 1 |
|  | British Virgin Islands | 0 | 0 | 1 | 1 |
| Total | Total | 16 | 16 | 16 | 48 |
Question:
how many nations won no gold medals?
Answer:
12