condition	mean	min	max
0 h after light	21.77775	20.2146	23.3409
4 h after light	7.923805	7.86891	7.9787
8 h after light	4.84063	4.46947	5.21179
4 h after dark	8.225125	7.83844	8.61181
8 h after dark	16.679949999999998	16.601	16.7589
12 h after dark	26.759749999999997	21.0365	32.483