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:
| Name | Years | Area | Authority | Decile | Roll |
| --- | --- | --- | --- | --- | --- |
| Fox Glacier School | 1–8 | Fox Glacier | State | 8.0 | 25.0 |
| Franz Josef Glacier School | 1–8 | Franz Josef | State | 9.0 | 19.0 |
| Haast School | 1–8 | Haast | State | 3.0 | 18.0 |
| Hokitika School | 1–6 | Hokitika | State | 4.0 | 154.0 |
| Jacobs River School | 1–8 | Jacobs River | State | 5.0 | 6.0 |
| Kaniere School | 1–6 | Kaniere | State | 7.0 | 129.0 |
| Kokatahi-Kowhitirangi School | 1–6 | Kokatahi | State | 8.0 | 52.0 |
| Kumara School | 1–8 | Kumara | State | 5.0 | 23.0 |
| Ross School | 1–6 | Ross | State | 6.0 | 16.0 |
| South Westland Area School | 1–15 | Harihari | State | 4.0 | 100.0 |
| St Mary's School | 1–8 | Hokitika | State | 5.0 | 152.0 |
| Westland High School | 7–15 | Hokitika | State | 6.0 | 397.0 |
| Whataroa School | 1–8 | Whataroa | State | 7.0 | 36.0 |
Question:
What is the decile sum with a roll smaller than 25, and franz josef area?
Answer:
9.0