Table 1

Number of cycles for each group, stratified according to the number of oocytes retrieved

Number of oocytes collected	Total cycles	% cycles
0	10 148	5.9
1–5	42 574	24.7
6–15	91 797	53.3
16–25	23 794	13.8
26–49	3970	2.3
50–59	38	0.02
60+	20	0.01
	172 341

Distribution of number of cycles correlated to number of oocytes retrieved.