condition mean min max 4 h after light 4.039903333333333 1.616 5.34214 8 h after light 8.35205 1.64111 14.8377 12 h after light 8.19612 4.89892 10.43 4 h after dark 8.098616666666667 5.13358 10.9492 8 h after dark 3.62077 1.88886 5.90203 12 h after dark 3.6688899999999998 3.40599 4.0341