condition	mean	min	max
4 h after light	15.0719	13.0916	17.2202
8 h after light	20.614166666666666	7.3362	31.7363
12 h after light	21.5566	12.0748	29.5715
4 h after dark	26.7298	17.2511	34.0998
8 h after dark	22.2666	20.1183	25.9078
12 h after dark	17.8469	16.4099	18.7198