condition mean min max 4 h after light 4.239795 3.72399 4.7556 8 h after light 5.270715 5.1859 5.35553 12 h after light 5.112534999999999 4.95977 5.2653 4 h after dark 6.7009 5.93168 7.47012 8 h after dark 4.6736 4.28941 5.05779 12 h after dark 4.88403 4.87606 4.892