| 1 | A | B | C |
| --- | --- | --- | --- |
| 2 | Hong Kong Supplementary Character Set - Version history |  |  |
| 3 | Version | Total characters | Publish date |
| 4 | GCCS | 3,049 | 1995 |
| 5 | HKSCS-1999 | 4,702 | 09/1999 |
| 6 | HKSCS-2001 | 4,818 | 12/2001 |
| 7 | HKSCS-2004 | 4,941 | 05/2005 |
| 8 | HKSCS-2008 | 5,009 | 12/2009 |
| 9 | HKSCS-2016 | 5,033 | 05/2017 |

Question: What supplementary sets were released in 2001 and 2004?
Answer: Hong Kong Supplementary Character Set's revisions were released in 2001 (adding 116 characters) and in 2004 (adding 123 characters), totalling 4,941 characters.