Table 5. Site frequency spectrum of the NS and S variants.

	X-linked variants		Y-linked variants
Frequency	NS	S	NS	S
0	34	15	24	17
0.1	2	0	5	0
0.2	0	0	2	2
0.3	1	0	4	0
0.4	0	1	1	0
0.5	0	0	1	2
0.6	0	0	1	0
0.7	1	0	1	0
0.8	1	0	0	0
0.9	1	0	0	0

NS, nonsynonymous; S, synonymous.