condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.00901685 0.0 0.0180337 12 h after light 0.0 0.0 0.0 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