condition	mean	min	max
4 h after light	19.474832499999998	17.742599	21.207066
8 h after light	18.0664105	15.628301	20.50452
12 h after light	20.4534735	17.0372	23.869747
4 h after dark	25.440354499999998	19.702448	31.178261
8 h after dark	24.6895315	21.207066	28.171997
12 h after dark	19.891792	19.891792	19.891792