condition	mean	min	max
4 h after light	19.357719	18.663894	20.051544
8 h after light	22.0849135	19.108642	25.061185
12 h after light	19.029224499999998	15.925235	22.133214
4 h after dark	24.3129545	23.397027	25.228882
8 h after dark	23.810443999999997	18.762506	28.858382
12 h after dark	18.830559	18.830559	18.830559