| Ultrasound | March | April | May | June | Jully | August | September | Total |
| P1: 2019 | 306 | 313 | 278 | 291 | 305 | 256 | 252 | 2005 |
| P2: 2020 | 340 | 170 | 149 | 169 | 189 | 211 | 261 | 1489 |
| P3: 2021 | 317 | 297 | 270 | 306 | 306 | 314 | 299 | 2109 |
| Subtotal | 963 | 780 | 697 | 766 | 800 | 781 | 812 | 5599 |
| Variance P1 - P2 |
|
|
|
|
|
|
| −516 (25.73%) |
| Variance P2 - P3 |
|
|
|
|
|
|
| +620 (29.39%) |