Guide to Tolkien's Letters progress update
Note: Some of Tolkien's Letters were reclassified as from Tolkien's Secretary, which is why the number has decreased by a small amount.
Letters 
Statistics for the Guide to Tolkien Letters
Letters: 2140
Letters from JRRT: 1333
Transcript statistics (2140 Letters)
32.7%
(700)
39.8%
(851)
27.5%
(589)
unknown
partial
complete
Tags on Letters: 7998
References on Letters: 6630
Note: Some of Tolkien's Letters were reclassified as from Tolkien's Secretary, which is why the number has decreased by a small amount.
39
3411