6-9 MONTHS 10 9-12 MONTHS 32 12-18 MONTHS 8 18-24 MONTHS 7 2 YEARS 25 3 YEARS 42 4 YEARS 40 5 YEARS 46 6 YEARS 28 7 YEARS 21 8 YEARS 21 9 YEARS 24 10 YEARS 31 11 YEARS 30 12 YEARS 41 13 YEARS 24 14 YEARS 24