Year	Month	Volume	Issue	Formats
2007	December	12	4
2007	November	12	3
2007	October	12	2
2007	September	12	1
2007	May	11	9
2007	April	11	8
2007	March	11	7
2007	February	11	6
2007	January	11	5
2006	December	11	4
2006	November	11	3
2006	October	11	2
2006	September	11	1