1999 2000 2001
January       11,337        9,399     11,794
February       10,671       11,299     11,486
March       12,580       12,939     11,316
April       10,803       11,857     11,694
May        8,630        9,504      8,914
June        7,833        9,183      8,003
July        9,409        9,747      8,919
August       11,777       10,350      9,710
September        4,873        3,661      3,241
October        5,801        5,302      4,354
November        5,592        8,259      7,103
December        7,423       10,969      8,440