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:
| Episode | Date | Official ITV1 rating (millions) | Weekly rank | Share (%) | Official ITV1 HD rating (millions) | Total ITV1 viewers (millions) |
| --- | --- | --- | --- | --- | --- | --- |
| Auditions 1 | 16 April | 9.74 | 3.0 | 40.5 | 1.110 | 10.850 |
| Auditions 2 | 23 April | 9.15 | 3.0 | 41.5 | 0.897 | 10.047 |
| Auditions 3 | 30 April | 9.27 | 1.0 | 39.9 | 0.952 | 10.222 |
| Auditions 4 | 7 May | 10.20 | 1.0 | 42.2 | 1.012 | 11.212 |
| Auditions 5 | 14 May | 8.61 | 3.0 | 32.0 | 0.835 | 9.445 |
| Auditions 6 | 21 May | 9.81 | 1.0 | 42.2 | 0.959 | 10.769 |
| Auditions 7 | 29 May | 9.88 | 1.0 | 40.4 | 1.185 | 11.065 |
| Semi-final 1 | 30 May | 10.59 | 4.0 | 41.9 | 1.272 | 11.862 |
| Semi-final 1 results | 30 May | 9.92 | 6.0 | 38.2 | 1.003 | 10.923 |
| Semi-final 2 | 31 May | 9.30 | 10.0 | 40.5 | 1.011 | 10.311 |
| Semi-final 2 results | 31 May | 8.97 | 15.0 | 35.8 | N/A | 8.970 |
| Semi-final 3 | 1 June | 8.93 | 16.0 | 41.8 | 1.060 | 9.990 |
| Semi-final 3 results | 1 June | 7.47 | 17.0 | 28.9 | N/A | 7.470 |
| Semi-final 4 | 2 June | 9.20 | 12.0 | 43.2 | 1.003 | 10.203 |
| Semi-final 4 results | 2 June | 9.23 | 11.0 | 39.1 | N/A | 9.230 |
| Semi-final 5 | 3 June | 8.98 | 14.0 | 43.3 | 1.032 | 10.012 |
| Semi-final 5 results | 3 June | 9.36 | 9.0 | 42.3 | 0.976 | 10.336 |
| Live final | 4 June | 10.79 | 2.0 | 47.0 | 1.433 | 12.223 |
| Live final results | 4 June | 11.35 | 1.0 | 49.3 | 1.272 | 12.622 |
Question:
When was the episode that had a share (%) of 41.5?
Answer:
23 April