condition	mean	min	max
4 h after light	18.662697	17.74042	19.584974
8 h after light	20.08309	18.067493	22.098687
12 h after light	17.216935	16.319943	18.113927
4 h after dark	23.540823000000003	20.479579	26.602067
8 h after dark	20.317411999999997	16.196557	24.438267
12 h after dark	18.556413	18.556413	18.556413