condition mean min max 4 h after light 10.9652085 10.241658 11.688759 8 h after light 11.174217500000001 10.299807 12.048628 12 h after light 10.791608499999999 10.477438 11.105779 4 h after dark 10.391545 10.305652 10.477438 8 h after dark 12.120789 10.950061 13.291517 12 h after dark 9.809681 9.809681 9.809681