condition	mean	min	max
0 h after light	16.84575	15.5661	18.1254
4 h after light	18.79655	18.4367	19.1564
8 h after light	19.52355	17.4003	21.6468
4 h after dark	24.056150000000002	23.8549	24.2574
8 h after dark	19.9736	19.4063	20.5409
12 h after dark	16.43405	16.3778	16.4903