condition mean min max 4 h after light 15.8408345 11.273125 20.408544 8 h after light 11.852736 10.243273 13.462199 12 h after light 10.586598500000001 9.900072 11.273125 4 h after dark 10.146457999999999 10.073957 10.218959 8 h after dark 11.3792065 11.273125 11.485288 12 h after dark 12.898852 12.898852 12.898852