condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0839686 0.0 0.173355 12 h after light 0.02255885 0.0 0.0902354 3 h after dark 0.11667866666666665 0.0 0.250474 6 h after dark 0.0286704 0.0 0.0860112 9 h after dark 0.07314 0.0 0.21942 12 h after dark 0.0 0.0 0.0