condition mean min max 0 h after light 36.371700000000004 34.7042 38.0392 2 h after light 8.53626 8.21738 8.85514 4 h after light 6.0059 4.63883 7.37297 8 h after light 12.033100000000001 11.685 12.3812 12 h after light 15.4125 14.259 16.566 2 h after dark 23.77055 21.7619 25.7792 4 h after dark 39.069599999999994 39.0226 39.1166 8 h after dark 60.935900000000004 53.3845 68.4873 12 h after dark 37.57355 34.0139 41.1332