condition	mean	min	max
4 h after light	14.4718	12.4653	16.0818
8 h after light	5.009313333333333	1.69315	6.96595
12 h after light	1.9228500000000002	1.42819	2.69355
4 h after dark	11.529866666666667	11.3281	11.8134
8 h after dark	22.016866666666665	19.7458	23.2708
12 h after dark	12.75577	8.89771	17.9555