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:
| Frequency | Callsign | Brand | Format | City of License | Website | Webcast |
| --- | --- | --- | --- | --- | --- | --- |
| 88.1 | KHOY | Catholic Radio | Religious | Laredo | khoy.org | listen live |
| 88.9 | XHLDO | Radio Tamaulipas | Public Radio | Nuevo Laredo | tamaulipas.gob | [mms://200.23.59.10/radiotam listen live] |
| 89.9 | KBNL | Radio Manantial | Spanish Religious | Laredo | kbnl.com | • |
| 91.3 | XHNOE | Stereo 91.3 FM | Spanish Contemporary | Nuevo Laredo | xhnoe.com | listen live |
| 92.7 | KJBZ | Z93 | Tejano | Laredo | z933.com | • |
| 94.1 | XHTLN | Imagen / RMX Laredo | Talk / Contemporary | Nuevo Laredo | rmx.com.mx | listen live |
| 94.9 | KQUR | The Works | Mainstream Rock | Laredo | 949theworks.com | listen live |
| 95.7 | XHBK | Exa FM | Spanish Contemporary | Nuevo Laredo | • | • |
| 96.5 | NEW | Tu Radio | Norteño | Nuevo Laredo | • | • |
| 97.1 | XHNLO | Multimedios Radio | Spanish Contemporary | Nuevo Laredo | mmradio.com | listen live |
| 98.1 | KRRG | Big Buck Country | Country | Laredo | bigbuck98.com | • |
| 99.3 | XHNK | Digital Ecstasy | Classic Hits | Nuevo Laredo | radiorama.com | listen live |
| 100.5 | KBDR | La Ley | Tejano | Laredo | laley1005.com | listen live |
| 101.5 | XHAS | Ke Buena | Norteño | Nuevo Laredo | kebuena.com | listen live |
| 102.3 | XHMW | Los 40 Principales | Spanish Pop | Nuevo Laredo | radiorama.com | listen live |
| 103.3 | XHAHU | Radio Nuevo León | Spanish Pop | Anáhuac | • | listen live |
| 104.5 | NEW | La Más Pesada | Norteño | Nuevo Laredo | • | • |
| 104.9 | XHNLR | Radio UAT | University Radio | Nuevo Laredo | uat.mx | • |
| 106.1 | KNEX | Hot 106.1 | Urban / Rhythmic Top 40 | Laredo | hot1061.com | listen live |
| 106.5 | NEW | La Tremenda | Norteño | Nuevo Laredo | tremenda.com.mx | • |
| 107.3 | XHGTS | Digital 107.3 | Spanish Pop | Nuevo Laredo | digital1073.com | listen live |
| 162.55 | WXK26 | NOAA Weather Radio | Weather | Laredo | noaa.gov | • |
Question:
Name the lowest frequency for brand of radio manantial
Answer:
89.9