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:
| Opponent | Played | Won | Lost | Drawn | % Won Overall |
| --- | --- | --- | --- | --- | --- |
| Australia | 4 | 4 | 0 | 0 | 100% |
| Canada | 21 | 19 | 2 | 0 | 90.48% |
| France | 34 | 24 | 10 | 0 | 70.59% |
| Germany | 1 | 1 | 0 | 0 | 100% |
| Ireland | 19 | 18 | 1 | 0 | 94.74% |
| Italy | 12 | 12 | 0 | 0 | 100% |
| Kazakhstan | 3 | 3 | 0 | 0 | 100% |
| Netherlands | 4 | 4 | 0 | 0 | 100% |
| New Zealand | 22 | 7 | 14 | 1 | 34.09% |
| Russia | 2 | 2 | 0 | 0 | 100% |
| Samoa | 1 | 1 | 0 | 0 | 100% |
| Scotland | 23 | 21 | 2 | 0 | 91.34% |
| South Africa | 5 | 5 | 0 | 0 | 100% |
| Spain | 14 | 12 | 1 | 1 | 89.29% |
| Sweden | 3 | 3 | 0 | 0 | 100% |
| United States | 13 | 12 | 1 | 0 | 92.31% |
| Wales | 30 | 29 | 1 | 0 | 96.67% |
| Total | 210 | 176 | 32 | 2 | 83.10% |
Question:
who did they have the largest win/loss differential against?
Answer:
Wales