condition	mean	min	max
4 h after light	41.8619	40.7162	43.0076
8 h after light	25.76915	24.806	26.7323
12 h after light	28.22405	27.7821	28.666
4 h after dark	54.5251	50.8098	56.8194
8 h after dark	61.98153333333333	59.5972	64.5809
12 h after dark	57.376533333333334	56.1829	59.6776