condition mean min max 2 h after light 66.8579 64.0932 68.8536 6 h after light 79.3993 76.2142 82.5119 10 h after light 86.9692 82.8878 90.9042 2 h after dark 92.46296666666667 91.2617 93.6733 6 h after dark 95.88353333333333 94.6891 96.5289 10 h after dark 85.43253333333334 83.3382 86.9639