2004 • 1 Reader • 375 pages • 2.5

2005 • 3 Readers • 532 pages • 3.7

2006 • 1 Reader • 420 pages • 4.5

2007 • 1 Reader • 536 pages • 4

2008 • 1 Reader • 418 pages • 3.5

2009 • 1 Reader • 464 pages • 3.5

2009 • 1 Reader • 464 pages • 5

2011 • 1 Reader • 486 pages • 3.5

2011 • 3 Readers • 468 pages • 4.2

3 Readers • 604 pages • 4.2

2013 • 2 Readers • 494 pages • 3.3