condition mean min max 0 h after light 3.9144550000000002 3.18386 4.64505 4 h after light 6.319455 3.23834 9.40057 8 h after light 4.744465 1.9909 7.49803 4 h after dark 3.971725 2.88128 5.06217 8 h after dark 5.56429 4.81557 6.31301 12 h after dark 2.6563800000000004 2.62713 2.68563