condition mean min max 0 h after light 4.4805600000000005 4.21507 4.74605 4 h after light 7.29612 5.18619 9.40605 8 h after light 3.43655 2.97865 3.89445 4 h after dark 6.361045 5.30296 7.41913 8 h after dark 6.0123999999999995 5.90104 6.12376 12 h after dark 5.036645 4.69644 5.37685