I came across 1 nuggets about the topic : 3-years-7-months on internet.
You can search these links on my public listing page on learning paths
https://gokulnk.com/notes/Patinga-Age-Groups
#patingaofficial#patinga-age-groups#month-1#month-2#4-years-8-months#4-years-9-months#4-years-10-months#4-years-11-months#5-years-0-months#5-years-1-month#5-years-2-months#9-years-10-months#4-years-2-months#4-years-3-months#4-years-4-months#4-years-5-months#4-years-6-months#3-years-0-months#3-years-1-month#3-years-2-months#3-years-3-months#3-years-4-months
#3-years-5-months#3-years-6-months#3-years-7-months#3-years-8-months
#3-years-9-months#3-years-10-months#3-years-11-months
#4-years#2-years-0-months#2-years-1-month#2-years-2-months#2-years-3-months#2-years-4-months#2-years-5-months#2-years-6-months#2-years-7-months#2-years-8-months#2-years-9-months#2-years-10-months#2-years-11-months#3 years#5-years-3-months#5-years-4-months#5-years-5-months#5-years-6-months#5-years-7-months#5-years-8-months#5-years-9-months#5-years-10-months#5-years-11-months
#6-years#age-groups