condition	mean	min	max
4 h after light	18.609815500000003	16.575386	20.644245
8 h after light	18.003937999999998	16.947005	19.060871
12 h after light	20.147269	18.243605	22.050933
4 h after dark	20.4326015	18.362047	22.503156
8 h after dark	20.3153335	13.761018	26.869649
12 h after dark	19.037428	19.037428	19.037428