condition mean min max 4 h after light 588.384864 397.862674 778.907054 8 h after light 392.202926 213.493614 570.912238 12 h after light 213.951906 213.231336 214.672476 4 h after dark 135.8167875 118.232057 153.401518 8 h after dark 91.7660395 64.670337 118.861742 12 h after dark 477.79608 477.79608 477.79608