condition mean min max 4 h after light 11.5084 10.5073 12.5095 8 h after light 21.75425 20.9567 22.5518 12 h after light 27.67425 25.9816 29.3669 4 h after dark 18.70205 17.6331 19.771 8 h after dark 14.4448 14.4051 14.4845 12 h after dark 13.6358 13.391 13.8806