condition mean min max 0 h after light 0.0752955 0.0 0.150591 2 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 12 h after light 0.0429745 0.0 0.085949 2 h after dark 0.12303955 0.0775181 0.168561 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0