condition	mean	min	max
0 h after light	21.4553	20.5736	22.337
4 h after light	17.8064	17.0215	18.5913
8 h after light	10.02084	9.71388	10.3278
4 h after dark	13.20575	12.6966	13.7149
8 h after dark	18.13315	16.5196	19.7467
12 h after dark	18.485799999999998	16.6256	20.346