condition mean min max 4 h after light 0.00416748 0.0 0.00833496 8 h after light 0.0 0.0 0.0 12 h after light 0.003848295 0.0 0.00769659 4 h after dark 0.0039358 0.0 0.0118074 8 h after dark 0.00890882 0.0 0.0170729 12 h after dark 0.0 0.0 0.0