condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 4 h after dark 0.02250575 0.0 0.0450115 8 h after dark 0.0224799 0.0 0.0449598 12 h after dark 0.045092400000000005 0.0445959 0.0455889