| Quarter | Patients likely to recommend | Total number of patients | Proportion |
| 1 | 164 | 222 | 0.7387 |
| 2 | 239 | 306 | 0.7810 |
| 3 | 186 | 245 | 0.7592 |
| 4 | 219 | 293 | 0.7474 |
| 5 | 219 | 287 | 0.7631 |
| 6 | 170 | 216 | 0.7870 |
| 7 | 199 | 256 | 0.7773 |
| 8 | 189 | 249 | 0.7590 |
| 9 | 177 | 245 | 0.7224 |
| 10 | 209 | 260 | 0.8038 |
| 11 | 227 | 275 | 0.8255 |
| 12 | 253 | 322 | 0.7857 |
| 13 | 278 | 350 | 0.7943 |
| 14 | 247 | 315 | 0.7841 |
| 15 | 234 | 285 | 0.8211 |
| 16 | 251 | 341 | 0.7361 |
| 17 | 319 | 405 | 0.7877 |