condition	mean	min	max
4 h after light	10.652435	9.76037	11.5445
8 h after light	9.644635000000001	9.19717	10.0921
12 h after light	31.43575	28.9636	33.9079
4 h after dark	66.9136	66.1254	67.7018
8 h after dark	44.89275	43.1152	46.6703
12 h after dark	26.83935	26.0951	27.5836