condition	mean	min	max
4 h after light	15.398323999999999	13.740269	17.056379
8 h after light	12.900692	12.185741	13.615643
12 h after light	12.4093655	11.901154	12.917577
4 h after dark	12.819842000000001	11.742012	13.897672
8 h after dark	14.9404285	13.159643	16.721214
12 h after dark	16.518537	16.518537	16.518537