Table 14 Grotto deterioration degree levels
Preserve condition | Deterioration degree value | Number of grottos | Total grotto number of the level |
|---|---|---|---|
Good | (0–0.2] | NO.211, NO.213, NO.805, NO.806 | 4 |
Moderate | (0.2 ~ 0.4] | NO.86, NO.214. NO.400, NO.513, NO.535, NO.689 | 6 |
Poor | (0.4 ~ 0.6] | / | 0 |
Very poor | (0.6 ~ 0.8] | NO.512 | 1 |