Blyth Inc., Greenwich, CT, reported fourth quarter net sales increased 5% to $380.5 million versus sales of $362.3 million a year earlier. Operating profit grew 51% to $39 million from $25.9 million in the prior-year period. Net earnings for the quarter were $22.9 million versus $13.6 million a year earlier, an increase of 69%.Net sales for the fiscal year ended Jan. 31 increased 9% to $1,288.6 million versus $1,178.8 million reported a year ago. Operating profit for the twelve month period was ...