Table 4
SMFR statistics associated with storms and substorms based on a more rigorous criterion

Bz type Number of events
Storm Substorm
N 0 2 (4.3%)
NS 2 (1.9%) 35 (32.7%)
SN 0 25 (28.7%)
S 0 26 (37.7%)
Total 2 (0.6%) 88 (28.5%)