| 时段 | 单词 | 缩略语 | 合成词 | 来源论文数 |
|---|---|---|---|---|
| 汇总 | 344 | 0 | 70 | 446 (12 mons) |
| 199912 | 38 | 0 | 0 | 39 (1 mons) |
| 199911 | 69 | 0 | 3 | 61 (1 mons) |
| 199910 | 40 | 0 | 1 | 39 (1 mons) |
| 199909 | 20 | 0 | 0 | 30 (1 mons) |
| 199908 | 37 | 0 | 3 | 47 (1 mons) |
| 199907 | 60 | 0 | 3 | 44 (1 mons) |
| 199906 | 32 | 0 | 0 | 39 (1 mons) |
| 199905 | 19 | 0 | 0 | 27 (1 mons) |
| 199904 | 21 | 0 | 0 | 34 (1 mons) |
| 199903 | 39 | 0 | 0 | 36 (1 mons) |
| 199902 | 9 | 0 | 0 | 25 (1 mons) |
| 199901 | 13 | 0 | 0 | 25 (1 mons) |