condition	mean	min	max
4 h after light	40.0141	38.6716	41.3566
8 h after light	26.96235	26.0663	27.8584
12 h after light	10.43905	10.2221	10.656
4 h after dark	6.89227	6.48021	7.30433
8 h after dark	6.60683	6.22997	6.98369
12 h after dark	18.19105	17.8872	18.4949