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 |
| --- | --- | --- | --- | --- |
| 5.0 | 4.0 | Rebecca Soni | United States | 2:22.17 |
| 6.0 | 4.0 | Leisel Jones | Australia | 2:23.81 |
| 6.0 | 5.0 | Mirna Jukić | Austria | 2:24.39 |
| 6.0 | 1.0 | Sara Nordenstam | Norway | 2:24.47 |
| 4.0 | 6.0 | Rie Kaneto | Japan | 2:24.62 |
| 5.0 | 5.0 | Megumi Taneda | Japan | 2:24.75 |
| 4.0 | 5.0 | Annamay Pierse | Canada | 2:25.01 |
| 4.0 | 4.0 | Yuliya Yefimova | Russia | 2:25.07 |
| 5.0 | 7.0 | Suzaan van Biljon | South Africa | 2:25.51 |
| 5.0 | 3.0 | Sally Foster | Australia | 2:25.54 |
| 6.0 | 3.0 | Jung Seul-Ki | South Korea | 2:25.95 |
| 6.0 | 6.0 | Joline Höstman | Sweden | 2:26.00 |
| 6.0 | 2.0 | Qi Hui | China | 2:26.16 |
| 5.0 | 2.0 | Anne Poleska | Germany | 2:26.74 |
| 4.0 | 8.0 | Elise Matthysen | Belgium | 2:27.04 |
| 4.0 | 1.0 | Jeong Da-Rae | South Korea | 2:27.28 |
| 3.0 | 7.0 | Inna Kapishina | Belarus | 2:27.34 |
| 4.0 | 3.0 | Amanda Beard | United States | 2:27.70 |
| 2.0 | 2.0 | Siow Yi Ting | Malaysia | 2:27.80 |
| 4.0 | 2.0 | Olga Detenyuk | Russia | 2:27.87 |
| 5.0 | 1.0 | Kirsty Balfour | Great Britain | 2:27.87 |
| 3.0 | 4.0 | Adriana Marmolejo | Mexico | 2:28.10 |
| 6.0 | 8.0 | Yuliya Pidlisna | Ukraine | 2:28.84 |
| 4.0 | 7.0 | Mireia Belmonte García | Spain | 2:29.46 |
| 2.0 | 4.0 | Alia Atkinson | Jamaica | 2:29.53 |
| 6.0 | 7.0 | Luo Nan | China | 2:29.67 |
| 3.0 | 1.0 | Katalin Bor | Hungary | 2:29.95 |
| 3.0 | 2.0 | Sara El Bekri | Morocco | 2:30.04 |
| 3.0 | 3.0 | Diana Gomes | Portugal | 2:30.18 |
| 5.0 | 8.0 | Sophie de Ronchi | France | 2:30.93 |
| 2.0 | 7.0 | Marina Kuč | Montenegro | 2:31.24 |
| 2.0 | 3.0 | Dilara Buse Günaydin | Turkey | 2:31.86 |
| 3.0 | 6.0 | Nađa Higl | Serbia | 2:32.78 |
| 2.0 | 6.0 | Smiljana Marinović | Croatia | 2:32.80 |
| 1.0 | 5.0 | Raminta Dvariškytė | Lithuania | 2:33.32 |
| 2.0 | 5.0 | Nicolette Teo | Singapore | 2:34.60 |
| 3.0 | 8.0 | Agustina de Giovanni | Argentina | 2:34.94 |
| 3.0 | 5.0 | Angeliki Exarchou | Greece | 2:36.83 |
| 1.0 | 3.0 | Noora Laukkanen | Finland | 2:38.97 |
| 1.0 | 4.0 | Tatiane Sakemi | Brazil | 2:39.13 |
| 5.0 | 6.0 | Sarah Poewe | Germany | DNS |
Question:
What is the lowest heat number for a swimmer with a time of 2:34.94?
Answer:
3.0