condition	mean	min	max
4 h after light	145.8675	138.459	153.276
8 h after light	116.32	111.361	121.279
12 h after light	125.94	121.951	129.929
4 h after dark	172.974	166.177	179.771
8 h after dark	193.8585	191.623	196.094
12 h after dark	184.261	182.345	186.177