condition mean min max 4 h after light 2.482105 2.00034 2.96387 8 h after light 1.226245 1.21966 1.23283 12 h after light 1.4972949999999998 1.23142 1.76317 4 h after dark 2.181216666666667 1.98614 2.43302 8 h after dark 2.2140166666666667 1.88776 2.80663 12 h after dark 2.51363 1.65002 3.57135