The sale of readymade garments (in million) from four branches of a garment company during 2010 and 2011 is shown in the table below.
| Branch/Year | 2010 | 2011 |
| A1 | 97 | 123 |
| A2 | 105 | 77 |
| A3 | 122 | 148 |
| A4 | 114 | 132 |
The sale of which branch of the garment company (in 2010 and 2011 combined) was the minimum?