| Percentiles | ||||||||
---|---|---|---|---|---|---|---|---|---|
 | 3rd | 5th | 10th | 25th | 50th | 75th | 90th | 95th | 97th |
Boys (n = 977) | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   5 years (61-71 months) | 45.7 | 46.4 | 47.4 | 49.4 | 52.1 | 55.3 | 59.1 | 61.9 | 64.1 |
   6 years (72-83 months) | 46.7 | 47.4 | 48.5 | 50.7 | 53.6 | 57.2 | 61.5 | 64.6 | 67.1 |
   7 years (84-95 months) | 47.7 | 48.5 | 49.7 | 52.1 | 55.3 | 59.4 | 64.1 | 67.7 | 70.5 |
   8 years (96-107 months) | 48.8 | 49.6 | 51.0 | 53.6 | 57.1 | 61.6 | 66.9 | 70.9 | 74.0 |
   9 years (108-119 months) | 49.7 | 50.6 | 52.1 | 54.9 | 58.8 | 63.7 | 69.5 | 74.0 | 77.5 |
   10 years (120-131 months) | 50.5 | 51.4 | 53.0 | 56.1 | 60.3 | 65.6 | 72.0 | 76.9 | 80.7 |
   11 years (132-143 months) | 51.1 | 52.1 | 53.8 | 57.1 | 61.6 | 67.4 | 74.2 | 79.5 | 83.6 |
   12 years (144-155 months) | 51.5 | 52.6 | 54.4 | 58.0 | 62.8 | 68.9 | 76.2 | 81.9 | 86.2 |
Girls (n = 883) | Â | Â | Â | Â | Â | Â | Â | Â | Â |
   5 years (61-71 months) | 45.8 | 46.4 | 47.4 | 49.3 | 51.8 | 54.7 | 58.0 | 60.4 | 62.1 |
   6 years (72-83 months) | 46.7 | 47.4 | 48.5 | 50.7 | 53.6 | 57.1 | 61.0 | 63.9 | 66.0 |
   7 years (84-95 months) | 47.7 | 48.5 | 49.8 | 52.2 | 55.5 | 59.6 | 64.3 | 67.7 | 70.4 |
   8 years (96-107 months) | 48.7 | 49.6 | 51.0 | 53.8 | 57.5 | 62.2 | 67.6 | 71.8 | 74.9 |
   9 years (108-119 months) | 49.6 | 50.5 | 52.2 | 55.2 | 59.4 | 64.7 | 70.9 | 75.7 | 79.4 |
   10 years (120-131 months) | 50.2 | 51.3 | 53.0 | 56.4 | 61.0 | 66.9 | 74.0 | 79.4 | 83.6 |
   11 years (132-143 months) | 50.6 | 51.8 | 53.7 | 57.4 | 62.5 | 69.0 | 76.8 | 82.8 | 87.4 |
   12 years (144-155 months) | 50.9 | 52.2 | 54.3 | 58.3 | 63.8 | 70.9 | 79.4 | 85.9 | 91.0 |