condition mean min max 4 h after light 5.98827 5.21486 6.76168 8 h after light 6.345105 6.00351 6.6867 12 h after light 6.0600000000000005 5.42833 6.69167 4 h after dark 6.079623333333333 5.5614 6.74648 8 h after dark 8.17046 7.57727 8.72319 12 h after dark 7.150096666666666 6.09412 8.44672