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 | Original Broadcast Date | Average | Rank | Remarks |
| --- | --- | --- | --- | --- |
| 1 | 8 April 2012 | 1.00 | 5 | This includes bloopers. |
| 2 | 15 April 2012 | 0.91 | 5 |  |
| 3 | 22 April 2012 | 0.92 | 5 |  |
| 4 | 29 April 2012 | 0.76 | 3 |  |
| 5 | 6 May 2012 | 0.67 | 3 |  |
| 6 | 13 May 2012 | 0.67 | 3 |  |
| 7 | 20 May 2012 | 0.64 | 3 |  |
| 8 | 27 May 2012 | 0.70 | 2 |  |
| 9 | 3 June 2012 | 0.58 | 4 |  |
| 10 | 10 June 2012 | 0.60 | 3 |  |
| 11 | 17 June 2012 | 0.81 | 2 |  |
| 12 | 24 June 2012 | 0.66 | 3 |  |
| 13 | 1 July 2012 | 0.86 | 3 |  |
| Average | Average | 0.75 | - |  |
Question:
how many aired in may?
Answer:
4