3-6 MONTHS 2 6-9 MONTHS 3 9-12 MONTHS 2 12-18 MONTHS 2 18-24 MONTHS 2 2 YEARS 2 3 YEARS 3 4 YEARS 4 5 YEARS 3 6 YEARS 3 7 YEARS 2 8 YEARS 2 9 YEARS 2 10 YEARS 2 11 YEARS 2 12 YEARS 2 13 YEARS 1 14 YEARS 1 15 YEARS 1