condition	mean	min	max
4 h after light	38.790633	36.87345	40.707816
8 h after light	39.4981315	38.244493	40.75177
12 h after light	40.924009	38.717445	43.130573
4 h after dark	36.854736	35.400675	38.308797
8 h after dark	41.8515365	40.328848	43.374225
12 h after dark	45.204112	45.204112	45.204112