Think you know everything there is to know about the Duchess of Cambridge's wardrobe? Think again. Despite the fact that every tiny detail, from the shade of her tights to the length of her hemline, has been analysed, it would seem there is always more to learn.

So did you know white shoes have been worn on exactly three per cent of Kate's official duties so far? And that velvet is her least-favoured fabric, featuring in just one  per cent of her outfits?

As she celebrated her 31st birthday earlier this month, Vogue printed a selection of statistics about Kate's clothes, which inspired us to go one step further and comb through the archives to find her favourite colours, styles and accessories to compile the ultimate 'Katepedia'.

And what did we find? A Kate who is growing more conservative as she settles into her role as future queen. Here, we bring you the ultimate by numbers guide to Kate's fashion choices . . .