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:
| Peak | Height (m) | Prom. (m) | Class | Parent |
| --- | --- | --- | --- | --- |
| The Cheviot | 815.0 | 556.0 | Marilyn | Broad Law |
| Hedgehope Hill | 714.0 | 148.0 | Hewitt | The Cheviot |
| Comb Fell | 652.0 | 69.0 | Hewitt | The Cheviot |
| Windy Gyle | 619.0 | 113.0 | Hewitt | The Cheviot |
| Cushat Law | 615.0 | 147.0 | Hewitt | The Cheviot |
| Bloodybush Edge | 610.0 | 114.0 | Hewitt | The Cheviot |
Question:
Tell me the total number of prom for height less than 615
Answer:
1.0