ICSS test of BCI 0.2 0.15 0.1 0.05 -0.05 0.1 -0.15 02% 500 1000 1500 2000 Time/day Fig.2.ICSS test result of BCI time series ICSS test of BPI 0.2 0.15 0.1 0.05 0.05 0.1 -0.15 -0.2 0250 500 1000 1500 2000 Time/day Fig.3.ICSS test result of BPI time series 0.2 ICSS test of BSI 0.15 0.1 0.05 0.05 -0.1 0 500 1000 1500 2000 Time/day Fig.4.ICSS test result of BSI time series 66 Fig. 2. ICSS test result of BCI time series Fig. 3. ICSS test result of BPI time series Fig. 4. ICSS test result of BSI time series