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:
| Heat | Lane | Name | Country | Mark |
| --- | --- | --- | --- | --- |
| 1.0 | 4.0 | Kim Gevaert | Belgium | 7.31 |
| 1.0 | 6.0 | Laura Turner | United Kingdom | 7.34 |
| 1.0 | 2.0 | Svetlana Nabokina | Russia | 7.38 |
| 1.0 | 5.0 | Inna Eftimova | Bulgaria | 7.50 |
| 1.0 | 7.0 | Ruddy Zang Milama | Gabon | 7.66 |
| 1.0 | 3.0 | Fabienne Weyermann | Switzerland | 7.67 |
| 1.0 | 8.0 | Maki Samantha Lockington | Cook Islands | 8.69 PB |
| 2.0 | 4.0 | Ene Franca Idoko | Nigeria | 7.19 |
| 2.0 | 5.0 | LaVerne Jones-Ferrette | United States Virgin Islands | 7.23 SB |
| 2.0 | 2.0 | Virgen Benavides | Cuba | 7.29 |
| 2.0 | 3.0 | Ailis McSweeney | Ireland | 7.43 |
| 2.0 | 6.0 | Lina Grincikaité | Lithuania | 7.45 |
| 2.0 | 7.0 | Affoué Amandine Allou | Ivory Coast | 7.57 SB |
| 2.0 | 8.0 | Martina Pretelli | San Marino | 8.54 |
| 3.0 | 7.0 | Guzel Khubbieva | Uzbekistan | 7.24 SB |
| 3.0 | 6.0 | Yevgeniya Polyakova | Russia | 7.25 |
| 3.0 | 4.0 | Verena Sailer | Germany | 7.37 |
| 3.0 | 5.0 | Bettina Müller-Weissina | Austria | 7.37 |
| 3.0 | 8.0 | Alexis Joyce | United States | 7.50 |
| 3.0 | 3.0 | Nina Kovacic | Slovenia | 7.57 |
| 3.0 | 2.0 | Valentina Nazarova | Turkmenistan | 7.72 NR |
| 4.0 | 2.0 | Tahesia Harrigan | British Virgin Islands | 7.21 |
| 4.0 | 5.0 | Jeanette Kwakye | United Kingdom | 7.33 |
| 4.0 | 7.0 | Ivet Lalova | Bulgaria | 7.36 |
| 4.0 | 8.0 | Lena Berntsson | Sweden | 7.45 |
| 4.0 | 6.0 | Feta Ahamada | Comoros | 7.71 |
| 4.0 | 1.0 | Rosa Mystique Jone | Nauru | 8.09 PB |
| 4.0 | 4.0 | Hawwa Haneefa | Maldives | 8.42 PB |
| 4.0 | 3.0 | Nongnuch Sanrat | Thailand | DNS |
| 5.0 | 3.0 | Angela Williams | United States | 7.29 |
| 5.0 | 4.0 | Oludamola Osayomi | Nigeria | 7.35 |
| 5.0 | 5.0 | Delphine Atangana | Cameroon | 7.37 |
| 5.0 | 7.0 | Vida Anim | Ghana | 7.37 |
| 5.0 | 8.0 | Ezinne Okparaebo | Norway | 7.42 |
| 5.0 | 2.0 | Lucimar Aparecida de Moura | Brazil | 7.64 |
| 5.0 | 6.0 | Amando Choo | Singapore | 7.74 NR |
Question:
What's the total number of Heat recorded for the british virgin islands?
Answer:
1.0