condition mean min max 0 h after light 0.6411355 0.558071 0.7242 4 h after light 0.865113 0.85143 0.878796 8 h after light 1.25998 1.10228 1.41768 4 h after dark 1.0688294999999999 0.988709 1.14895 8 h after dark 1.101463 0.995896 1.20703 12 h after dark 1.131383 0.816316 1.44645