condition	mean	min	max
4 h after light	8.485158	8.037063	8.933253
8 h after light	8.6120385	7.778184	9.445893
12 h after light	9.075409	8.037063	10.113755
4 h after dark	8.7544655	8.251165	9.257766
8 h after dark	7.756349	7.447036	8.065662
12 h after dark	8.037063	8.037063	8.037063