condition	mean	min	max
4 h after light	3.7770333333333337	3.7319400000000003	3.8069300000000004
8 h after light	3.80791	3.73788	3.85627
12 h after light	3.7735833333333333	3.75489	3.80019
4 h after dark	3.7663433333333334	3.7276800000000003	3.8159699999999996
8 h after dark	3.77955	3.73671	3.80208
12 h after dark	3.7485	3.7380199999999997	3.76385