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:
| DS Division | Main Town | GN Divisions | Area (km 2 ) | Sri Lankan Tamil | Sri Lankan Moors | Sinhalese | Indian Tamil | Other | Total | Population Density (/km 2 ) |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Madhu | Madhu | 17.0 | 553.0 | 6793.0 | 559.0 | 273.0 | 5.0 | 1.0 | 7631.0 | 14.0 |
| Mannar | Mannar | 49.0 | 212.0 | 40865.0 | 8982.0 | 953.0 | 131.0 | 6.0 | 50937.0 | 240.0 |
| Manthai West | Adampan | 36.0 | 608.0 | 12993.0 | 1123.0 | 337.0 | 177.0 | 0.0 | 14630.0 | 24.0 |
| Musali | Chilawathurai | 20.0 | 475.0 | 3042.0 | 4818.0 | 147.0 | 2.0 | 0.0 | 8009.0 | 17.0 |
| Nanaddan | Nanaddan | 31.0 | 148.0 | 16875.0 | 605.0 | 251.0 | 79.0 | 34.0 | 17844.0 | 121.0 |
Question:
Name the least area 
Answer:
148.0