| 时段 | 单词 | 缩略语 | 合成词 | 来源论文数 |
|---|---|---|---|---|
| 汇总 | 307 | 15 | 114 | 437 (12 mons) |
| 199912 | 34 | 4 | 10 | 47 (1 mons) |
| 199911 | 36 | 1 | 8 | 56 (1 mons) |
| 199910 | 17 | 0 | 4 | 33 (1 mons) |
| 199909 | 21 | 2 | 2 | 30 (1 mons) |
| 199908 | 25 | 2 | 8 | 31 (1 mons) |
| 199907 | 25 | 1 | 4 | 38 (1 mons) |
| 199906 | 22 | 1 | 3 | 37 (1 mons) |
| 199905 | 35 | 0 | 4 | 35 (1 mons) |
| 199904 | 18 | 2 | 6 | 30 (1 mons) |
| 199903 | 27 | 0 | 12 | 43 (1 mons) |
| 199902 | 11 | 0 | 2 | 20 (1 mons) |
| 199901 | 22 | 0 | 3 | 37 (1 mons) |