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 | Russia | 8 | 12 | 10 | 30 |
| 2 | China | 7 | 4 | 2 | 13 |
| 3 | Ukraine | 7 | 1 | 1 | 9 |
| 4 | Poland | 3 | 4 | 2 | 9 |
| 5 | Belarus | 2 | 2 | 2 | 6 |
| 6 | Germany | 2 | 1 | 2 | 5 |
| 6 | South Africa | 2 | 1 | 2 | 5 |
| 7 | Australia | 2 | 1 | 1 | 4 |
| 8 | Japan | 2 | 0 | 1 | 3 |
| 9 | France | 1 | 3 | 0 | 4 |
| 10 | Romania | 1 | 2 | 2 | 5 |
| 11 | Hungary | 1 | 2 | 1 | 4 |
| 12 | Great Britain | 1 | 1 | 2 | 4 |
| 12 | Spain | 1 | 1 | 2 | 4 |
| 14 | Morocco | 1 | 1 | 1 | 3 |
| 15 | Brazil | 1 | 0 | 3 | 3 |
| 16 | Czech Republic | 1 | 0 | 2 | 3 |
| 17 | Moldova | 1 | 0 | 0 | 1 |
| 18 | Finland | 0 | 2 | 1 | 3 |
| 19 | Estonia | 0 | 1 | 1 | 2 |
| 19 | North Korea | 0 | 1 | 1 | 2 |
| 19 | South Korea | 0 | 1 | 1 | 2 |
| 22 | Denmark | 0 | 1 | 0 | 1 |
| 22 | Ireland | 0 | 1 | 0 | 1 |
| 22 | Jamaica | 0 | 1 | 0 | 1 |
| 22 | Kazakhstan | 0 | 1 | 0 | 1 |
| 22 | Uganda | 0 | 1 | 0 | 1 |
| 27 | Croatia | 0 | 0 | 2 | 2 |
| 28 | Canada | 0 | 0 | 1 | 1 |
| 28 | Cyprus | 0 | 0 | 1 | 1 |
| 28 | Italy | 0 | 0 | 1 | 1 |
| 28 | Switzerland | 0 | 0 | 1 | 1 |
Question:
how many nations earned no bronze medals?
Answer:
7