condition	mean	min	max
4 h after light	1.83987	1.76943	1.91031
8 h after light	1.606975	1.53408	1.67987
12 h after light	1.696905	1.63493	1.75888
4 h after dark	1.5353866666666667	1.19704	1.70864
8 h after dark	2.12731	1.69322	2.48235
12 h after dark	1.9639766666666665	1.49735	2.61568