condition	mean	min	max
4 h after light	1.4656099999999999	1.279	1.65222
8 h after light	0.8100054999999999	0.782072	0.837939
12 h after light	1.79428	1.77376	1.8148
4 h after dark	1.975635	1.92675	2.02452
8 h after dark	1.92254	1.61727	2.22781
12 h after dark	1.95353	1.79169	2.11537