condition	mean	min	max
4 h after light	19.2073555	16.954289	21.460422
8 h after light	16.9037265	15.812398	17.995055
12 h after light	16.742151	15.489247	17.995055
4 h after dark	14.5205455	14.059654	14.981437
8 h after dark	19.1894395	17.995055	20.383824
12 h after dark	24.511082	24.511082	24.511082