condition mean min max 0 h after light 0.336534 0.288164 0.384904 4 h after light 0.0473523 0.0 0.0947046 8 h after light 0.28784 0.195555 0.380125 4 h after dark 0.7093975 0.471689 0.947106 8 h after dark 0.3815965 0.0 0.763193 12 h after dark 0.2825533 0.0959256 0.469181