condition	mean	min	max
4 h after light	4.047456666666667	3.91264	4.258380000000001
8 h after light	4.062156666666667	3.9669	4.22813
12 h after light	4.14592	3.86487	4.6
4 h after dark	4.0218066666666665	3.88732	4.22813
8 h after dark	4.081189999999999	3.9296599999999997	4.31286
12 h after dark	4.035013333333334	3.90107	4.2474