0-3 MONTHS 1 3-6 MONTHS 2 18-24 MONTHS 4 2 YEARS 4 3 YEARS 2 4 YEARS 12 5 YEARS 3 6 YEARS 9 7 YEARS 4 8 YEARS 5 10 YEARS 6 11 YEARS 4 12 YEARS 7 14 YEARS 5 15 YEARS 3 16 YEARS 4