condition	mean	min	max
4 h after light	21.0580045	15.339974	26.776035
8 h after light	30.052271	28.938119	31.166423
12 h after light	27.6135415	26.824671	28.402412
4 h after dark	17.0713195	14.207214	19.935425
8 h after dark	20.1704795	19.358574	20.982385
12 h after dark	12.795389	12.795389	12.795389