The average number of weeks that a new No. 1
bestseller stayed top of the hardback fiction section of the New York
Times Bestseller List has fallen from 5.5 in the 1990s, 14 in the 1970s
and 22 in the 1960s to barely a fortnight last year — according to the
study of the half-century from 1956-2005.
In the 1960s, fewer than three novels reached No. 1 in an average year; last year, 23 did.
Here is the link, the pointer was from Alex. To repeat my standard mantra, the evidence shows we are moving away from a winner-take-all society, not toward it.