Do your clothes fit better than they did at the beginning of the year? Do you feel more energetic? Do you get sick less? I don't want to take a side in the whole "fit and fat" debate, but I'll go so far as to say that weight and height alone are not enough datapoints to determine health.

You should track down someone who can do a fat percentage analysis on you. I get that through my health club, but I don't know who else has those fancy electrical impedance calipars on hand. That would be a more sensible indicator of whether your lifestyle is paying healthy dividends.