Freezing temperatures

Time (min). Temperature (*C)
0. ___
1. ___
2 ___
3. ___
4. ___
5 ___
6. ___
7 ___
8. ___
9. ___
10. ___
11. ___
12. ___
13. ___
14. ___
15. ___

To answer the question, we would need the actual temperature data for each time interval. Without the specific temperature values, it is not possible to fill in the blanks.