6-9 MONTHS 3 9-12 MONTHS 3 12-18 MONTHS 3 2 YEARS 1 3 YEARS 4 4 YEARS 4 5 YEARS 8 6 YEARS 8 7 YEARS 2 8 YEARS 1 10 YEARS 2 11 YEARS 4 12 YEARS 5 13 YEARS 2 14 YEARS 1 16 YEARS 2