When this new songbook came out, they said this:
16 For that and other reasons, the Governing Body approved the publication of a new songbook entitled Sing to Jehovah. The number of songs in our new book has been reduced to 135. Because there are fewer songs to learn, it should be possible for us to memorize the lyrics of at least some of the new songs. This is in harmony with Paul’s counsel recorded at Ephesians 5:19.—Read. - w10 12/15 p. 23
So, what's the count now? 135+ new songs = 142.
Old songbook had 225. Slowly but surely getting into the 200s again.