condition	mean	min	max
4 h after light	52.3418	48.4	56.2836
8 h after light	35.376400000000004	34.1159	36.6369
12 h after light	41.364149999999995	40.7498	41.9785
4 h after dark	53.1852	50.2639	55.196
8 h after dark	67.22413333333333	61.7182	70.716
12 h after dark	65.23503333333333	57.0485	69.4236