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 | Name | Nationality | Result | Notes |
| --- | --- | --- | --- | --- |
|  | Huang Qiuyan | China | 14.39 | SB |
|  | Anastasiya Juravleva | Uzbekistan | 14.21 | =SB |
|  | Zhang Hao | China | 13.63 |  |
| 4 | Wacharee Ritthiwat | Thailand | 13.54 | SB |
| 5 | Tatyana Bocharova | Kazakhstan | 13.50 |  |
| 6 | Wang Kuo-Huei | Chinese Taipei | 13.25 | SB |
| 7 | Fumiyo Yoshida | Japan | 13.09 |  |
| 8 | Ngew Sin Mei | Malaysia | 12.93 |  |
| 9 | Manisha Dey | India | 12.83 |  |
| 10 | Thitima Muangjan | Thailand | 12.79 |  |
| 11 | Phan Thi Thu Lan | Vietnam | 12.75 |  |
| 12 | Lo Yu-Hsin | Chinese Taipei | 12.69 |  |
|  | Elena Bobrovskaya | Kyrgyzstan | DNS |  |
Question:
what is the number of different nationalities represented by the top 5 athletes?
Answer:
4