condition	mean	min	max
4 h after light	21.54361	20.944421	22.142799
8 h after light	18.362229	16.327913	20.396545
12 h after light	23.88019	18.697176	29.063204
4 h after dark	21.696755	21.214209	22.179301
8 h after dark	24.843211500000002	22.106227	27.580196
12 h after dark	32.020745	32.020745	32.020745