$871 million: Estimated spending on audiobooks, 2005

$832 million: Estimated spending on audiobooks, 2004

74: Percentage of audiobook spending on CDs, 2005

45: Percentage of audiobook spending on CDs, 2003

16: Percentage audiobook spending on cassettes, 2005

45: Percentage of audiobook spending on cassettes, 2003

9: Percentage of audiobook spending on digital downloads, 2005

58: Percentage of audiobook spending on fiction, 2005

54: Percentage of units sold generated by unabridged titles, 2005

24.6: Percentage of adults who have listened to an audiobook in the last year

4.9: Hours per week audiobook listeners listen to titles

$57,000: Average household income of audiobook listeners

63: Percentage of audiobooks bought at physical stores

31: Percentage of audiobooks bought online

6: Percentage of audiobooks bought via mail order or phone