condition	mean	min	max
4 h after light	16.3364	14.542	18.1308
8 h after light	17.487499999999997	16.5419	18.4331
12 h after light	17.21985	16.205	18.2347
4 h after dark	23.2804	21.6849	24.8759
8 h after dark	20.8534	20.3142	21.3926
12 h after dark	20.645850000000003	20.2388	21.0529