condition	mean	min	max
4 h after light	17.758129	16.553581	18.962677
8 h after light	18.3105735	17.685635	18.935512
12 h after light	21.135675	16.600197	25.671153
4 h after dark	22.750481	18.935512	26.56545
8 h after dark	22.702943	20.605875	24.800011
12 h after dark	18.935512	18.935512	18.935512