condition	mean	min	max
0 h after light	20.5336	19.6226	21.4446
4 h after light	7.93844	6.907	8.96988
8 h after light	5.98626	5.26603	6.70649
4 h after dark	6.93178	5.80441	8.05915
8 h after dark	8.646525	8.25739	9.03566
12 h after dark	11.379909999999999	9.93322	12.8266