condition mean min max 4 h after light 13.1744 13.1292 13.2196 8 h after light 16.7897 16.1207 17.4587 12 h after light 7.710165 5.87752 9.54281 4 h after dark 5.129373333333334 4.30776 6.43163 8 h after dark 4.3514566666666665 2.98095 5.6786 12 h after dark 10.35195 9.93085 10.8176