| Rank | Referral code | Application count |
|---|---|---|
| 1 | pro_1_288 | 17 |
| 2 | pro_1_365 | 16 |
| 3 | pro_1_121 | 16 |
| 4 | pro_1_65 | 15 |
| 5 | pro_1_298 | 13 |
| 6 | pro_10_58 | 11 |
| 7 | pro_10_86 | 10 |
| 8 | pro_10_52 | 10 |
| 9 | pro_10_42 | 10 |
| 10 | pro_10_20 | 10 |
| 11 | pro_1_200 | 9 |
| 12 | pro_1_159 | 7 |
| 13 | pro_1_74 | 6 |
| 14 | pro_1_149 | 5 |
| 15 | pro_1_382 | 4 |
| 16 | pro_1_138 | 3 |
| 17 | pro_1_361 | 3 |
| 18 | pro_1_2 | 1 |
| 19 | pro_10_49 | 1 |
| 20 | pro-1-88 | 1 |
| 21 | pro_10_81 | 1 |
| 22 | pro_1_126 | 1 |
| 23 | pro_10_51 | 1 |