condition	mean	min	max
4 h after light	8.616655	7.940406	9.292904
8 h after light	8.5223205	8.060668	8.983973
12 h after light	8.1525495	8.060668	8.244431
4 h after dark	8.330295	8.028787	8.631803
8 h after dark	7.681049	7.30143	8.060668
12 h after dark	8.060668	8.060668	8.060668