Table 2.
Number of hazy contents through the observational periods
| T1 | T2 | T3 | ||||
|---|---|---|---|---|---|---|
| (N) | (%) | (N) | (%) | (N) | (%) | |
| No hazy contents | 19 | 95 | 18 | 90 | 19 | 95 |
| Hazy contents | 1 | 5 | 2 | 10 | 1 | 5 |
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