condition mean min max 4 h after light 3.5253050000000004 3.2736 3.77701 8 h after light 2.146465 1.97143 2.3215 12 h after light 2.5154750000000003 2.31036 2.72059 4 h after dark 4.0676733333333335 3.84025 4.24173 8 h after dark 4.37071 3.84736 4.8357 12 h after dark 4.398586666666667 3.9451 4.82412