condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0265851 0.0 0.0797553 4 h after dark 0.0 0.0 0.0 8 h after dark 0.03263236666666667 0.0 0.0978971 12 h after dark 0.0716228 0.0 0.115985