condition	mean	min	max
4 h after light	2.701535	2.09336	3.30971
8 h after light	2.561965	2.47767	2.64626
12 h after light	3.177775	3.0231	3.33245
4 h after dark	6.552545	5.72285	7.38224
8 h after dark	4.37298	4.17408	4.57188
12 h after dark	4.42534	3.99722	4.85346