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 | Nationality | Time |
| --- | --- | --- | --- | --- |
| 6.0 | 4.0 | Susie O'Neill | Australia | 1:59.14 |
| 4.0 | 2.0 | Helene Muller | South Africa | 1:59.89 |
| 5.0 | 4.0 | Claudia Poll | Costa Rica | 2:00.11 |
| 6.0 | 5.0 | Lindsay Benko | United States | 2:00.13 |
| 4.0 | 4.0 | Camelia Potec | Romania | 2:00.18 |
| 6.0 | 6.0 | Kerstin Kielgass | Germany | 2:00.25 |
| 5.0 | 5.0 | Franziska van Almsick | Germany | 2:00.37 |
| 4.0 | 5.0 | Martina Moravcová | Slovakia | 2:00.46 |
| 5.0 | 6.0 | Nadezhda Chemezova | Russia | 2:00.47 |
| 4.0 | 3.0 | Natalya Baranovskaya | Belarus | 2:00.58 |
| 6.0 | 1.0 | Carla Geurts | Netherlands | 2:00.60 |
| 6.0 | 3.0 | Wang Luna | China | 2:00.89 |
| 5.0 | 3.0 | Giaan Rooney | Australia | 2:00.99 |
| 4.0 | 8.0 | Mandy Leach | Zimbabwe | 2:01.05 |
| 5.0 | 7.0 | Rada Owen | United States | 2:01.10 |
| 4.0 | 1.0 | Sara Parise | Italy | 2:01.31 |
| 5.0 | 2.0 | Yang Yu | China | 2:01.34 |
| 6.0 | 2.0 | Jessica Deglau | Canada | 2:01.42 |
| 4.0 | 7.0 | Karen Pickering | Great Britain | 2:01.42 |
| 4.0 | 6.0 | Solenne Figuès | France | 2:01.46 |
| 3.0 | 1.0 | Rania Elwani | Egypt | 2:01.93 |
| 5.0 | 1.0 | Nina van Koeckhoven | Belgium | 2:02.15 |
| 6.0 | 8.0 | Laura Nicholls | Canada | 2:02.69 |
| 5.0 | 8.0 | Laura Roca | Spain | 2:03.37 |
| 3.0 | 2.0 | Zoi Dimoschaki | Greece | 2:04.06 |
| 3.0 | 5.0 | Olena Lapunova | Ukraine | 2:04.39 |
| 2.0 | 5.0 | Lára Hrund Bjargardóttir | Iceland | 2:05.22 |
| 3.0 | 4.0 | Chantal Gibney | Ireland | 2:05.24 |
| 2.0 | 6.0 | Vesna Stojanovska | Macedonia | 2:05.58 |
| 3.0 | 8.0 | Pilin Tachakittiranan | Thailand | 2:05.88 |
| 3.0 | 3.0 | Elina Partõka | Estonia | 2:05.90 |
| 3.0 | 6.0 | Tsai Shu-Min | Chinese Taipei | 2:06.12 |
| 3.0 | 7.0 | Roh Joo-Hee | South Korea | 2:07.21 |
| 2.0 | 7.0 | Ivanka Moralieva | Bulgaria | 2:07.61 |
| 2.0 | 3.0 | Anna Korshikova | Kyrgyzstan | 2:08.08 |
| 2.0 | 2.0 | Petra Banović | Croatia | 2:08.30 |
| 1.0 | 4.0 | Nisha Millet | India | 2:08.89 |
| 1.0 | 5.0 | Pamela Vásquez | Honduras | 2:15.83 |
| 1.0 | 3.0 | Marella Mamoun | Syria | 2:18.78 |
| 2.0 | 4.0 | Florencia Szigeti | Argentina | DSQ |
| 6.0 | 7.0 | Karen Legg | Great Britain | DNS |
Question:
What is the highest lane for heat 6 with a time of dns?
Answer:
7.0