You Don't Know by Helen Shapiro first appeared on the Israeli foreign-music chart on 30 Oct 1961, entering at #3. It peaked at #3 on 30 Oct 1961. In total it spent 2 weeks on the chart, last charting on 13 Nov 1961.
| Wk | Date | Pos |
|---|---|---|
| 1 | 30 Oct 1961 | 3 |
| 2 | 13 Nov 1961 | 3 |