condition mean min max 0 h after light 5.268405 5.23288 5.30393 4 h after light 7.431235 6.10094 8.76153 8 h after light 5.8993199999999995 5.0089 6.78974 4 h after dark 7.82991 7.41906 8.24076 8 h after dark 7.9916350000000005 7.04409 8.93918 12 h after dark 6.10356 5.37706 6.83006