condition mean min max 2 h after light 5.18489 0.0 10.7511 6 h after light 8.199605 0.0 25.3021 10 h after light 7.982265 0.0 21.7206 14 h after light 16.268171666666667 3.09579 66.9001 18 h after light 6.210448333333333 1.55044 21.115 2 h after dark 9.361558333333335 1.50992 41.334