condition	mean	min	max
4 h after light	17.10615	16.2722	17.9401
8 h after light	9.796265	5.85943	13.7331
12 h after light	14.257005	7.15621	21.3578
4 h after dark	16.5547	14.0735	19.0359
8 h after dark	25.350450000000002	24.2923	26.4086
12 h after dark	19.77225	19.4862	20.0583