Fiscal Year*1	Age of females at first birth										Inter birth interval													Source
											With infant mortality						With infant survival						Nunber of females
	5	6	7	8	9	10	11	12	Total	Average	1	2	3	4+	Total	Average	1	2	3	4+	Total	Average
1983-1994	1	4	9	5	1	0	0	0	20	7.1	No data					1.59	No data					2.37	No data	[20]
1985-1995	0	1	7	1	2	1	0	0	12	7.6	12	9	2	0	23	-	1	30	20	2	53	-	32	[9]
1984-2009	1	4	10	10	8	6	0	2	41	8.2	No data													[21]
*1 Fiscal year endding March.
Source: Data includes original variables in these source and culcurated variables using these source.
[9]  Izawa K. (2009) Studies of wild Japanese macaques. Dobutsusha, Tokyo (in Japanese)
[20] Takahata Y., Suzuki S., Agetsuma N., Okayasu N., Sugiura H., Takahashi H., Yamagiwa J., Izawa K., Furuichi T., Hill D., Maruhashi T., Saito C., Sato S., Sprague D. (1998) Reproduction of wild Japanese macaque females of Yakushima and Kinkazan Islands: a preliminary report. Primates 39: 339-349
[21]  Izawa K. (2010) The frequency of consecutive parturition over years in Japanese monkeys living in Kinkazan. Japanese monkeys in Miyagi Prefecture 25: 1-2 (in Japanese)