condition mean min max 3 h after light 0.183334 0.115772 0.290817 6 h after light 0.0667147 0.0 0.12789 9 h after light 0.132848 0.0 0.218245 12 h after light 0.19008633333333333 0.0 0.40506 3 h after dark 0.13627766666666666 0.0 0.408833 6 h after dark 0.13476100000000002 0.0698041 0.250269 9 h after dark 0.10417816666666666 0.0706695 0.134675 12 h after dark 0.0230021 0.0 0.0690063