Table A6-2 Packages and Expedited Received - Packages Delivered by the Postal Service by Class and Sender (Percentage of Pieces by Class) Postal Fiscal Years 1987, 2006 and 2007 (Diary Data)
Mail Class	Business			Friend/Relative			Other/Unknown ‚
	1987	2006	2007	1987	2006	2007	1987	2006	2007
First-Class and Priority	43.6	71.0	68.7	53.6	16.3	19.1	2.8	12.7	12.2
Express Mail ‚	10.8	43.1	79.7	52.0	56.9	18.6	27.2	0.0	1.7
Standard Mail - Total	94.8	85.8	82.5	2.2	4.2	5.2	3.1	10.0	12.3
Standard Mail - Regular	94.8	86.4	83.0	2.2	3.1	3.6	3.1	10.5	13.4
Standard Mail - Enhanced	�	88.2	86.7	�	5.7	0.0	�	6.1	13.3
Standard Mail - Not Flat-Machinable	N/A	N/A	100.0	N/A	N/A	0.0	N/A	N/A	0.0
Standard Mail - Nonprofit	�	74.6	81.9	�	0.0	0.0	�	25.4	18.1
Standard Mail - Nonprofit Enhanced	�	100.0	100.0	�	0.0	0.0	�	0.0	0.0
Standard Mail - Not Flat-Machinable	N/A	N/A	100.0	N/A	N/A	0.0	N/A	N/A	0.0
Parcel Post - Total	63.1	74.6	85.9	36.9	0.0	0.0	0.0	25.4	14.1
Non-DBMC Parcel Post ‚	63.1	75.2	73.3	36.9	17.6	23.4	0.0	7.2	3.3
DBMC Parcel Post	�	93.8	92.4	�	1.5	3.0	�	4.7	4.7
Bound Printed Matter - Total	98.6	76.2	75.4	0.0	0.4	0.2	1.4	23.4	24.4
Special Standard Mail	98.5	86.3	83.0	0.0	9.7	10.3	5.0	4.1	6.7
Library Rate ‚	100.0	87.8	100.0	0.0	0.0	0.0	0.0	12.2	0.0
� Data was not collected prior to 1997.
‚ Fluctuations may be due to small sample sizes.