condition	mean	min	max
4 h after light	20.435628	19.21129	21.659966
8 h after light	28.195796	26.506205	29.885387
12 h after light	19.356486	16.100752	22.61222
4 h after dark	28.050584	24.999946	31.101222
8 h after dark	29.127161	21.659887	36.594435
12 h after dark	18.957988	18.957988	18.957988