condition	mean	min	max
4 h after light	3.91149	3.8349	4.00329
8 h after light	3.9026466666666666	3.8090300000000004	4.0226
12 h after light	3.8550433333333336	3.78865	3.95813
4 h after dark	3.82829	3.7807699999999995	3.8748199999999997
8 h after dark	3.9045566666666667	3.7706800000000005	4.06829
12 h after dark	3.915643333333333	3.8201099999999997	4.069319999999999