condition	mean	min	max
4 h after light	2.92683	2.42886	3.4248
8 h after light	1.95492	1.94198	1.96786
12 h after light	3.300345	2.90936	3.69133
4 h after dark	4.014585	3.20629	4.82288
8 h after dark	3.255265	3.07539	3.43514
12 h after dark	3.955705	3.76587	4.14554