| 时段 | 单词 | 缩略语 | 合成词 | 来源论文数 |
|---|---|---|---|---|
| 汇总 | 920 | 248 | 955 | 4378 (12 mons) |
| 199912 | 228 | 44 | 111 | 383 (1 mons) |
| 199911 | 292 | 52 | 139 | 393 (1 mons) |
| 199910 | 315 | 56 | 160 | 429 (1 mons) |
| 199909 | 256 | 57 | 115 | 369 (1 mons) |
| 199908 | 268 | 47 | 125 | 396 (1 mons) |
| 199907 | 268 | 57 | 125 | 385 (1 mons) |
| 199906 | 269 | 53 | 107 | 374 (1 mons) |
| 199905 | 261 | 59 | 123 | 347 (1 mons) |
| 199904 | 253 | 48 | 115 | 352 (1 mons) |
| 199903 | 280 | 57 | 117 | 368 (1 mons) |
| 199902 | 226 | 49 | 88 | 303 (1 mons) |
| 199901 | 224 | 35 | 82 | 279 (1 mons) |