condition	mean	min	max
4 h after light	23.9497	20.4743	28.9092
8 h after light	13.834326666666668	5.20338	19.5134
12 h after light	9.751886666666667	6.67204	13.9711
4 h after dark	15.14066	8.01368	22.535
8 h after dark	9.19496	4.50201	18.2567
12 h after dark	20.0842	15.2627	24.301