10-11 Years (4 UK) 11-12 Years (5 UK) 12-15 Months (3C) 15-18 Months (4C) 18-24 Months (5C) 2-2.5 Years (6C) 2.5-3 Years (7C) 3-3.5 Years (8C) 3.5-4 Years (9C) 4-4.5 Years (10C) 4.5-5 Years (11C) 5-6 Years (12C) 6-7 Years (13C) 7-8 Years (1 UK) 8-9 Years (2 UK) 9-10 Years (3 UK) 10-11 Years (4 UK) 11-12 Years (5 UK) 8-9 Years (2 UK) 9-10 Years (3 UK)