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:
| Place | Team | Matches | Won | Drawn | Lost | Difference | Points |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1 | Canada | 6 | 6 | 0 | 0 | 62–6 | 12 |
| 2 | Sweden | 6 | 4 | 1 | 1 | 33–14 | 9 |
| 3 | Switzerland | 6 | 4 | 1 | 1 | 28–12 | 9 |
| 4 | Norway | 6 | 2 | 0 | 4 | 10–27 | 4 |
| 5 | Great Britain | 6 | 1 | 1 | 4 | 18–42 | 3 |
| 6 | United States | 6 | 1 | 1 | 4 | 14–42 | 3 |
| 7 | Finland | 6 | 1 | 0 | 5 | 15–37 | 2 |
Question:
how many teams won at least 2 games throughout the 1951 world ice hockey championships?
Answer:
4