Table 3. Percentage differences ((population size with progenitors − population size without progenitors)/(population size with progenitors)*100%) between the thymocytes populations developed in the presence or absence of bone marrow progenitors.

Thymocytes population	6 weeks (%)	3 months (%)	6 months (%)	1 year (%)	18 months (%)	2 years (%)
DN	9.62	11.78	34.97	98.47	99.98	99.99
DP	0.96	5.04	11.23	80.92	99.57	99.99
SP4	0.55	4.56	10.54	78.51	99.50	99.99
SP8	0.39	4.21	10.19	76.92	99.41	99.99
Total thymocytes	3.09	6.28	14.10	87.54	99.75	99.99