Time RC1/C2 RC1/C3 RC2/C3 N
3.31-4.2 0.8019 0.7456 0.9526 77
4.9-4.10 0.9213 0.9161 0.9533 50
4.19-4.20 0.9599 0.7265 0.8345 45
5.13-5.15 0.8764 0.7365 0.8652 72
5.25-5.27 0.8731 0.7941 0.9722 57
All above 0.8578 0.7446 0.9085 448
Table 2: Correlation coefficient between three components C1, C2, C3, (P <0.01).