condition mean min max 4 h after light 12.558800000000002 11.5836 13.534 8 h after light 13.005099999999999 12.8843 13.1259 12 h after light 13.181049999999999 12.9378 13.4243 4 h after dark 17.589 17.1957 17.9823 8 h after dark 17.2262 17.217 17.2354 12 h after dark 15.65195 15.2999 16.004