condition mean min max 4 h after light 39.4268855 33.107735 45.746036 8 h after light 56.148854 39.88484 72.412868 12 h after light 35.570041 32.870131 38.269951 4 h after dark 31.235693 29.897798 32.573588 8 h after dark 32.1152375 31.617928 32.612547 12 h after dark 23.020692 23.020692 23.020692