condition	mean	min	max
0 h after light	12.5824	10.2262	14.9386
4 h after light	8.21158	6.84957	9.57359
8 h after light	12.71555	10.898	14.5331
4 h after dark	19.8433	18.6574	21.0292
8 h after dark	16.746650000000002	16.1839	17.3094
12 h after dark	13.0182	11.6861	14.3503