condition mean min max 4 h after light 3.2146999999999997 3.15413 3.27527 8 h after light 2.62333 2.51289 2.73377 12 h after light 3.1062450000000004 3.0396 3.17289 4 h after dark 5.42165 4.73488 6.10842 8 h after dark 4.5884149999999995 4.36002 4.81681 12 h after dark 4.333645000000001 4.10463 4.56266