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:
| Rank | Athlete | Ski time | Penalties\nP+S+P+S | Total |
| --- | --- | --- | --- | --- |
|  | Zhang Qing (CHN) | 59:53.2 | 1+1+0+1 | 1:02:53.2 |
|  | Dmitriy Pozdnyakov (KAZ) | 1:01:01.0 | 0+2+0+0 | 1:03:01.0 |
|  | Dmitriy Pantov (KAZ) | 59:24.8 | 1+2+0+1 | 1:03:24.8 |
| 4 | Hideki Yamamoto (JPN) | 1:02:55.5 | 0+1+3+0 | 1:06:55.5 |
| 5 | Qiu Lianhai (CHN) | 1:03:18.9 | 1+1+0+2 | 1:07:18.9 |
| 6 | Shin Byung-Gook (KOR) | 1:02:49.3 | 1+2+1+1 | 1:07:49.3 |
| 7 | Son Hae-Kwon (KOR) | 1:02:58.3 | 1+1+2+1 | 1:07:58.3 |
| 8 | Wang Xin (CHN) | 1:04:42.4 | 2+1+1+1 | 1:09:42.4 |
| 9 | Naoki Shindo (JPN) | 1:03:08.5 | 3+1+0+3 | 1:10:08.5 |
| 9 | Jeon Jae-Won (KOR) | 1:02:08.5 | 2+2+2+2 | 1:10:08.5 |
| 11 | Alexey Karevskiy (KAZ) | 1:03:28.8 | 3+1+1+2 | 1:10:28.8 |
| 12 | Sergey Abdukarov (KAZ) | 1:05:11.4 | 1+2+1+3 | 1:12:11.4 |
| 13 | Takashi Shindo (JPN) | 1:01:15.0 | 3+3+2+4 | 1:13:15.0 |
| 14 | Shinji Ebisawa (JPN) | 1:04:13.6 | 3+3+1+3 | 1:14:13.6 |
| 15 | Choi Neung-Chul (KOR) | 1:08:50.6 | 3+2+0+1 | 1:14:50.6 |
| 16 | Byamba Enkh-Amgalan (MGL) | 1:15:20.4 | 4+5+2+2 | 1:28:20.4 |
Question:
how many countries were represented?
Answer:
5