condition	mean	min	max
0 h after light	19.3311	18.3345	20.3277
4 h after light	11.43545	11.2299	11.641
8 h after light	7.762179999999999	7.03147	8.49289
4 h after dark	14.4953	14.1626	14.828
8 h after dark	16.61205	14.9124	18.3117
12 h after dark	15.89	14.0873	17.6927