condition mean min max 4 h after light 6.31266 3.64036 7.90247 8 h after light 4.9961400000000005 1.86338 8.36284 12 h after light 7.060553333333333 4.2687 10.7189 4 h after dark 8.93475 7.27572 9.80272 8 h after dark 7.14231 6.70531 8.01447 12 h after dark 7.593413333333333 7.12075 7.90769