condition mean min max 4 h after light 89.8015 88.7468 90.8562 8 h after light 81.52090000000001 77.2985 85.7433 12 h after light 84.6636 83.6743 85.6529 4 h after dark 94.59790000000001 93.6027 95.5931 8 h after dark 86.84870000000001 83.5898 90.1076 12 h after dark 87.31540000000001 86.3781 88.2527