condition mean min max 4 h after light 0.2428245 0.19681 0.288839 8 h after light 0.1599955 0.139725 0.180266 12 h after light 0.1548445 0.152973 0.156716 4 h after dark 0.060756550000000006 0.0358268 0.0856863 8 h after dark 0.323315 0.256038 0.390592 12 h after dark 0.3818365 0.283812 0.479861