condition mean min max 4 h after light 4.18148 1.89672 6.69605 8 h after light 2.79945 1.09009 4.0928 12 h after light 3.5606366666666664 2.12039 4.30819 4 h after dark 4.12938 1.88359 5.39742 8 h after dark 5.3304833333333335 4.16698 6.87079 12 h after dark 5.57886 4.64347 6.1667