condition mean min max 4 h after light 161.7768275 152.614772 170.938883 8 h after light 181.7644985 163.463025 200.065972 12 h after light 271.7512615 216.532405 326.970118 4 h after dark 228.0037755 197.628761 258.37879 8 h after dark 285.9025585 195.713811 376.091306 12 h after dark 155.016659 155.016659 155.016659