condition mean min max 4 h after light 11.13565 10.0035 12.2678 8 h after light 7.251580000000001 7.21694 7.28622 12 h after light 8.103315 7.03534 9.17129 4 h after dark 12.084833333333334 11.1064 13.7159 8 h after dark 15.857433333333335 14.5461 16.8759 12 h after dark 11.860733333333334 11.0408 12.3453