condition	mean	min	max
4 h after light	4.07882	3.99283	4.18314
8 h after light	4.119316666666667	4.06514	4.19623
12 h after light	4.06719	4.03134	4.111759999999999
4 h after dark	4.18044	4.11261	4.222169999999999
8 h after dark	4.20974	4.1155800000000005	4.3159
12 h after dark	4.1051400000000005	4.02338	4.17331