condition	mean	min	max
0 h after light	18.23535	17.0839	19.3868
4 h after light	27.82985	26.7248	28.9349
8 h after light	34.018	30.2347	37.8013
4 h after dark	28.0802	26.7343	29.4261
8 h after dark	25.35205	23.4579	27.2462
12 h after dark	19.6782	16.9193	22.4371