condition mean min max 2 h after light 9.342851666666666 7.98551 10.9482 6 h after light 7.00202 5.48406 9.57586 10 h after light 6.90199 5.16867 9.03609 14 h after light 6.967256666666667 4.64482 8.085 18 h after light 8.042796666666666 5.13609 10.8833 2 h after dark 8.045275 6.55927 9.26514