condition mean min max 3 h after light 4.5831 3.8542 5.50009 6 h after light 4.41829 4.21482 4.79715 9 h after light 5.220606666666667 4.31909 5.73246 12 h after light 7.5104225 3.66666 8.92069 3 h after dark 12.242833333333333 11.4933 12.6502 6 h after dark 10.818196666666667 9.28609 12.5409 9 h after dark 6.95766 5.87347 7.58899 12 h after dark 3.4093999999999998 2.86589 3.95291