condition mean min max 4 h after light 5.69897 5.31614 6.056430000000001 8 h after light 5.317593333333333 5.02466 5.53852 12 h after light 5.16852 4.91486 5.43864 4 h after dark 5.37348 4.72428 5.95099 8 h after dark 5.585916666666667 5.075740000000001 6.154780000000001 12 h after dark 5.443413333333333 5.31778 5.64379