condition	mean	min	max
4 h after light	3.3632350000000004	2.72559	4.00088
8 h after light	8.093275	7.61189	8.57466
12 h after light	16.0538	15.8584	16.2492
4 h after dark	16.947850000000003	16.8354	17.0603
8 h after dark	8.833725	8.82472	8.84273
12 h after dark	7.0769400000000005	7.03648	7.1174