condition	mean	min	max
4 h after light	7.4909615	6.54036	8.441563
8 h after light	8.597916000000001	8.303392	8.89244
12 h after light	8.4255405	8.113761	8.73732
4 h after dark	8.0974055	7.435732	8.759079
8 h after dark	8.107046	7.757605	8.456487
12 h after dark	7.196092	7.196092	7.196092