Table 3:

Expected number of children depending on family income

Family income	Expected number of children							Average expected number of children
	0	1	2	3	4	5 and >	Total		Sigma
Unsatisfactory	22.2	33.3	25.4	14.3	1.6	3.2	100.0	1.49±0.14	1.21
Satisfying	12.6	22.5	44.6	13.7	4.7	1.8	100.0	1.81±0.05*	1.09
Good	8.2	18.3	43.1	23.3	5.0	2.2	100.0	2.05±0.05*	1.06
Total	11.0	21.1	42.7	18.5	4.7	2.1	100.0	1.91±0.03	1.06

Note:

* - statistically significant differences in values compared with the unsatisfactory income (P <0.001).