Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Title | Localized Title | Creator | Years | Origin |
| --- | --- | --- | --- | --- |
| Atashin'chi | 아따맘마, Attamamma | Eiko Kera | 2004-2008 | Japan |
| Baby and Me | 아기와 나, Agiwana | Marimo Ragawa | 1995-2002 | Japan |
| Gakko no Ojikan | 학교에 가자!, Hakgyoe Gaja | Mimi Tajima | 2004-present | Japan |
| Gakuen Prince | 학원왕자, Hagwonwangja | Jun Yuzuki | 2007-present | Japan |
| Hanasekeru Seishounen | 카시카 | Natsumi Itsuki | 1997-2000 | Japan |
| Koucha Ōji | 홍차왕자 | Nanpei Yamada | 1998-2004 | Japan |
| Koucha Ōji no Himegimi | 애장판 홍차왕자, aejangpan Hongchawangja | Nanpei Yamada | 2008-present | Japan |
| Papillon -Hana to Chō- | 빠삐용, Ppappiyon | Miwa Ueda | 2007-present | Japan |
| Penguin Revolution | 펭귄혁명, Penggwin Hyeokmyeong | Sakura Tsukuba | 2005-2008 | Japan |
| Sailor Moon | 달의 요정 세일러문 | Naoko Takeuchi | 1997-1999 | Japan |
| Shanimuni Go | Just Go Go!, 저스트 고고! | Marimo Ragawa | 1999-present | Japan |
| Sprout | 스프라우트, 스프라우트 | Atsuko Nanba | 2006-present | Japan |
Question:
What years did 홍차왕자 air?
Answer:
1998-2004