condition	mean	min	max
4 h after light	1.56023	1.36914	1.75132
8 h after light	2.6282300000000003	2.41862	2.83784
12 h after light	3.4561349999999997	3.15081	3.76146
4 h after dark	3.7380899999999997	2.84034	4.63584
8 h after dark	2.473625	2.37109	2.57616
12 h after dark	2.3941600000000003	2.30978	2.47854