condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 2.411335 0.0 4.82267 12 h after light 2.34507 0.0 4.69014 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 2.626225 0.0 5.25245 12 h after dark 0.0 0.0 0.0