condition	mean	min	max
4 h after light	18.886650000000003	18.1045	19.6688
8 h after light	16.7224	16.6012	16.8436
12 h after light	18.155450000000002	16.3127	19.9982
4 h after dark	21.63065	20.1406	23.1207
8 h after dark	23.31655	23.0692	23.5639
12 h after dark	23.0083	22.483	23.5336