Table 4: Evaluation of residual block by level.

Residual Block Level (T4/T1) Absolute Frequency Relative Frequency (%)
Up to 0.4 2 3%
> 0.4 to 0.7 25 37%
> 0.7 to 0.8 34 51%
> 0.8 to 0.9 6 9%