condition mean min max 0 h after light 4.42096 4.15986 4.68206 4 h after light 5.749505 5.68469 5.81432 8 h after light 6.877190000000001 6.73012 7.02426 4 h after dark 4.84077 4.47003 5.21151 8 h after dark 5.362245 4.94043 5.78406 12 h after dark 4.9805 4.80482 5.15618