The French food and drink group Danone has announced a 4.1% lift in sales for its first quarter, compared to the same period last year, to €3.583 billion (US$3.2 billion).   Danone went on to say that for 2002 it foresees sales growth of at least 5.2% and an increase of four to five percentage points in the 2001 operating margin of 11.1%.