condition mean min max 4 h after light 12.9737105 11.311203 14.636218 8 h after light 11.055286 10.761283 11.349289 12 h after light 10.5550645 9.465151 11.644978 4 h after dark 11.890812 11.335442 12.446182 8 h after dark 11.519268 11.311203 11.727333 12 h after dark 9.47942 9.47942 9.47942