| 时段 | 单词 | 缩略语 | 合成词 | 来源论文数 |
|---|---|---|---|---|
| 汇总 | 11 | 159 | 969 | 4975 (12 mons) |
| 199912 | 0 | 28 | 62 | 499 (1 mons) |
| 199911 | 0 | 25 | 80 | 481 (1 mons) |
| 199910 | 0 | 33 | 76 | 501 (1 mons) |
| 199909 | 0 | 23 | 58 | 458 (1 mons) |
| 199908 | 0 | 11 | 35 | 333 (1 mons) |
| 199907 | 0 | 25 | 73 | 402 (1 mons) |
| 199906 | 0 | 25 | 49 | 442 (1 mons) |
| 199905 | 0 | 20 | 53 | 353 (1 mons) |
| 199904 | 0 | 16 | 41 | 360 (1 mons) |
| 199903 | 0 | 35 | 73 | 440 (1 mons) |
| 199902 | 0 | 13 | 41 | 320 (1 mons) |
| 199901 | 0 | 19 | 67 | 386 (1 mons) |