condition	mean	min	max
0 h after light	20.2623	18.9365	21.5881
4 h after light	16.37805	14.4891	18.267
8 h after light	18.9304	14.7088	23.152
4 h after dark	21.2095	21.1703	21.2487
8 h after dark	20.3682	17.5933	23.1431
12 h after dark	22.795749999999998	22.3997	23.1918