condition	mean	min	max
4 h after light	8.173216499999999	8.074478	8.271955
8 h after light	8.2667635	8.250361	8.283166
12 h after light	8.446746	8.446746	8.446746
4 h after dark	8.5594615	8.446746	8.672177
8 h after dark	8.8582375	8.484805	9.23167
12 h after dark	8.446746	8.446746	8.446746