condition mean min max 4 h after light 4.646585 4.11518 5.17799 8 h after light 3.9625950000000003 3.71182 4.21337 12 h after light 4.661985 4.3112 5.01277 4 h after dark 5.13666 4.50795 5.96595 8 h after dark 5.294616666666666 4.53586 5.78029 12 h after dark 4.76926 3.16552 5.91971