condition mean min max 0 h after light 0.459137 0.458728 0.459546 4 h after light 0.8070925 0.650153 0.964032 8 h after light 0.574269 0.496142 0.652396 4 h after dark 0.776016 0.703952 0.84808 8 h after dark 0.610067 0.508263 0.711871 12 h after dark 0.6647434999999999 0.601271 0.728216