| 时段 | 单词 | 缩略语 | 合成词 | 来源论文数 |
|---|---|---|---|---|
| 汇总 | 987 | 393 | 1589 | 4975 (12 mons) |
| 199912 | 362 | 103 | 248 | 499 (1 mons) |
| 199911 | 366 | 100 | 284 | 481 (1 mons) |
| 199910 | 334 | 104 | 246 | 501 (1 mons) |
| 199909 | 338 | 91 | 218 | 458 (1 mons) |
| 199908 | 298 | 54 | 172 | 333 (1 mons) |
| 199907 | 352 | 83 | 259 | 402 (1 mons) |
| 199906 | 338 | 98 | 213 | 442 (1 mons) |
| 199905 | 324 | 80 | 207 | 353 (1 mons) |
| 199904 | 328 | 74 | 193 | 360 (1 mons) |
| 199903 | 368 | 113 | 249 | 440 (1 mons) |
| 199902 | 293 | 65 | 174 | 320 (1 mons) |
| 199901 | 329 | 87 | 242 | 386 (1 mons) |