condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0993424 0.0 0.200482 9 h after light 0.0 0.0 0.0 12 h after light 0.0712363 0.0 0.103373 3 h after dark 0.14347000000000001 0.0 0.43041 6 h after dark 0.0 0.0 0.0 9 h after dark 0.118412 0.0 0.251365 12 h after dark 0.0439733 0.0 0.0879466