condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.04572866666666667 0.0 0.137186 8 h after dark 0.055388 0.0 0.166164 12 h after dark 0.0 0.0 0.0