condition mean min max 0 h after light 0.1509339 0.0755678 0.2263 4 h after light 0.4958635 0.223119 0.768608 8 h after light 0.149259 0.0 0.298518 4 h after dark 0.594583 0.222255 0.966911 8 h after dark 0.7451145 0.524429 0.9658 12 h after dark 0.447889 0.368455 0.527323