condition	mean	min	max
4 h after light	7.673385	6.15989	9.18688
8 h after light	6.675085	6.07937	7.2708
12 h after light	15.33905	10.519	20.1591
4 h after dark	16.6536	13.9741	19.3331
8 h after dark	11.955325	9.57605	14.3346
12 h after dark	10.432915000000001	6.20993	14.6559