（単位：件、百万円）
| 年度 | 区分 | 応札者数 | 計 | ||
|---|---|---|---|---|---|
| 1者 | 2者以上 | ||||
| 令和3 | 契約件数 | 290 | 96 | 386 | |
| 割合 | 75.1% | 24.8% | 100.0% | ||
| 契約額 | 196,461 | 61,134 | 257,595 | ||
| 割合 | 76.2% | 23.7% | 100.0% | ||
| 4 | 契約件数 | 264 | 96 | 360 | |
| 割合 | 73.3% | 26.6% | 100.0% | ||
| 契約額 | 140,131 | 26,706 | 166,838 | ||
| 割合 | 83.9% | 16.0% | 100.0% | ||
| 5 | 契約件数 | 208 | 93 | 301 | |
| 割合 | 69.1% | 30.8% | 100.0% | ||
| 契約額 | 150,251 | 49,397 | 199,649 | ||
| 割合 | 75.2% | 24.7% | 100.0% | ||
| 計 | 契約件数 | 762 | 285 | 1,047 | |
| 割合 | 72.7% | 27.2% | 100.0% | ||
| 契約額 | 486,844 | 137,238 | 624,083 | ||
| 割合 | 78.0% | 21.9% | 100.0% | ||