A group of ecology students investigated the population of wild garlic plants (Allium ursinum) in an L-shaped woodland clearing.
The dimensions of the clearing are shown in the diagram below:

To estimate the population, the students:
Their results are shown in the table below:
| Quadrat number | Number of wild garlic plants |
|---|---|
| 1 | 3 |
| 2 | 5 |
| 3 | 2 |
| 4 | 6 |
| 5 | 4 |
| 6 | 5 |
| 7 | 3 |
| 8 | 7 |
| 9 | 4 |
| 10 | 1 |
Estimate the total population of wild garlic plants in the clearing. Give your answer in standard form.