| 거래년도 | 자료수 | 평균 | 표준편차 | 최소값 | 최대값 |
|---|---|---|---|---|---|
| 2007 | 7 | 254 | 30 | 200 | 271 |
| 2008 | 27 | 275 | 82 | 172 | 410 |
| 2009 | 54 | 273 | 54 | 146 | 436 |
| 2010 | 61 | 284 | 82 | 38 | 519 |
| 2011 | 317 | 344 | 98 | 184 | 604 |
| 2012 | 1,249 | 319 | 78 | 134 | 648 |
| 2013 | 1,966 | 333 | 81 | 88 | 680 |
| 2014 | 1,633 | 331 | 116 | 36 | 766 |
| 2015 | 1,945 | 348 | 90 | 83 | 647 |
| 2016 | 2,113 | 390 | 105 | 55 | 1,550 |
| 2017 | 1,384 | 428 | 102 | 160 | 732 |
| 2018 | 1,426 | 494 | 597 | 52 | 22,413 |
| 2019 | 1,598 | 532 | 169 | 175 | 1,037 |
| 2020 | 1,553 | 601 | 233 | 196 | 1,326 |
| 2021 | 1,964 | 716 | 348 | 211 | 1,775 |
| 2022 | 935 | 817 | 395 | 189 | 1,993 |