condition	mean	min	max
4 h after light	8.76085	8.62182	8.833839999999999
8 h after light	8.663656666666666	8.41676	8.88808
12 h after light	8.699883333333332	8.606119999999999	8.82071
4 h after dark	9.46091	9.31763	9.590110000000001
8 h after dark	9.44193	9.146419999999999	9.82465
12 h after dark	9.847556666666666	9.71754	9.95225