condition	mean	min	max
4 h after light	20.8804	20.0274	21.7334
8 h after light	18.091749999999998	17.5549	18.6286
12 h after light	15.7597	14.6476	16.8718
4 h after dark	20.727133333333335	20.4448	21.1474
8 h after dark	21.5375	19.1833	23.9142
12 h after dark	23.345333333333333	22.4347	24.1065