condition mean min max 4 h after light 4.63997 4.45047 4.89945 8 h after light 4.579456666666666 4.53135 4.6493199999999995 12 h after light 4.53653 4.3041 4.80403 4 h after dark 4.585903333333333 4.5512 4.6252699999999995 8 h after dark 4.552766666666667 4.4553400000000005 4.60899 12 h after dark 4.61878 4.39245 4.93159