condition	mean	min	max
4 h after light	8.001565	7.54941	8.45372
8 h after light	11.668099999999999	11.0077	12.3285
12 h after light	12.376449999999998	12.2054	12.5475
4 h after dark	21.7273	21.2032	22.2514
8 h after dark	21.7038	21.6174	21.7902
12 h after dark	10.098945	8.65719	11.5407