Table 4.

Range (minimum, maximum), mean and median of continuous husbandry characteristics in a sample of 107 organic laying hen flocks assessed in eight European countries.

Variables (Continuous)	Min.	Max.	Mean	Median	N
Group size 1	318	4500	2422	2998	107
Total hen places of the farm (can be different sites)	550	305,000	13,762	6400	107
Hen house buildings per site	1	10	2.1	2	105
Cockerels per 1000 hens	0	25	1.9	0	106
Stocking density, hens/m2 accessible area indoors 3	2.4	7.5	5.2	5.3	102
Percent littered accessible area indoors	16	100	60.6	63	102
Days empty between batches	4	84	22.6	21	97
Access time (hours/day) to covered veranda	5	24	16.4	15	77
Clear height of pop-holes (cm) to free range as open at first visit	0	500	53.8	44	105
Dawn phase (min) in light schedule at first visit	0	90	16.5	15	107
Dusk phase (min) in light schedule at first visit	0	150	22.2	20	107

¹ Groups were separated inside the building and in nearly all cases (four exceptions) also separated outside; ³ including raised surfaces without dunging pit/belt underneath and covered veranda if accessible 24 h/day.