Table 4. Status of adoption of bid method by region
| Item | Total number of orders | Number of lowest-priced bids (%) | Number of screening systems(%) |
| Total | 1,631 | 897(55.0) | 734(45.0) |
| Seoul | 349 | 167(47.9) | 182(52.1) |
| Busan | 130 | 84(64.6) | 46(35.4) |
| Dae-gu | 129 | 111(86.0) | 18(14.0) |
| Incheon | 109 | 61(56.0) | 48(44.0) |
| Gwangju | 37 | 16(43.2) | 21(56.8) |
| Daejeon | 64 | 61(95.3) | 3(4.7) |
| Ulsan | 25 | 13(52.0) | 12(48.0) |
| Sejong | 15 | 8(53.3) | 7(46.7) |
| Gyeonggi-do | 481 | 210(43.7) | 271(56.3) |
| Gangwon-do | 14 | 5(35.7) | 9(64.3) |
| Chung-cheong bukdo | 56 | 26(46.4) | 30(53.6) |
| Chung-cheong namdo | 38 | 20(52.6) | 18(47.4) |
| Jeolla bukdo | 36 | 18(50.0) | 18(50.0) |
| Jeolla namdo | 11 | 1(9.1) | 10(90.9) |
| Gyeongsang bukdo | 38 | 24(63.2) | 14(36.8) |
| Gyeongsang namdo | 97 | 71(73.2) | 26(26.8) |
| Jeju Island | 2 | 1(50.0) | 1(50.0) |