condition	mean	min	max
4 h after light	1.3798	1.23179	1.52781
8 h after light	2.574085	2.30787	2.8403
12 h after light	1.60866	1.4652	1.75212
4 h after dark	3.33495	3.14093	3.52897
8 h after dark	2.15918	2.13551	2.18285
12 h after dark	1.84459	1.6425	2.04668