condition mean min max 0 h after light 0.31663149999999995 0.316349 0.316914 4 h after light 0.36093149999999996 0.276288 0.445575 8 h after light 0.33921100000000004 0.276021 0.402401 4 h after dark 0.200171 0.17754 0.222802 8 h after dark 0.357199 0.269306 0.445092 12 h after dark 0.1339215 0.132447 0.135396