condition mean min max 3 h after light 1.3449586666666669 0.773166 2.4296 6 h after light 0.791432 0.549708 1.0222 9 h after light 1.7685 1.20453 2.46738 12 h after light 1.94257975 0.765369 2.55097 3 h after dark 3.1640833333333336 1.56361 5.11401 6 h after dark 6.52261 3.13235 8.64552 9 h after dark 4.376843333333333 2.42565 6.43277 12 h after dark 2.565095 2.47761 2.65258