condition mean min max 4 h after light 3.2464049999999998 2.48128 4.01153 8 h after light 2.3654650000000004 2.19302 2.53791 12 h after light 2.002205 1.8013 2.20311 4 h after dark 2.88234 2.13202 3.343 8 h after dark 2.92572 2.54222 3.39433 12 h after dark 3.6247499999999997 3.01361 4.21702