Năm 2001 có bao nhiêu ngày Thứ 2

1/1/2001 8/1/2001 15/1/2001 22/1/2001 29/1/2001 5/2/2001 12/2/2001 19/2/2001 26/2/2001 5/3/2001 12/3/2001 19/3/2001 26/3/2001 2/4/2001 9/4/2001 16/4/2001 23/4/2001 30/4/2001 7/5/2001 14/5/2001 21/5/2001 28/5/2001 4/6/2001 11/6/2001 18/6/2001 25/6/2001 2/7/2001 9/7/2001 16/7/2001 23/7/2001 30/7/2001 6/8/2001 13/8/2001 20/8/2001 27/8/2001 3/9/2001 10/9/2001 17/9/2001 24/9/2001 1/10/2001 8/10/2001 15/10/2001 22/10/2001 29/10/2001 5/11/2001 12/11/2001 19/11/2001 26/11/2001 3/12/2001 10/12/2001 17/12/2001 24/12/2001 31/12/2001