condition mean min max 4 h after light 15.7788 12.0698 19.4878 8 h after light 15.741800000000001 14.5693 16.9143 12 h after light 12.261845000000001 9.44689 15.0768 4 h after dark 20.4561 14.9933 25.9189 8 h after dark 10.738235 9.72327 11.7532 12 h after dark 13.92195 11.4224 16.4215