Some numbers for this years countdown:
2000 songs have played. We are expecting 2000 (0 to go).
1845 songs from (last year) have played.
56 songs have not appeared in any previous countdown (debut).
99 songs did not appear in the countdown last year (re-entry).
223 Kiwi songs have played.
114 Aussi songs have played.

58 different Kiwi artists have played. The ones with the highest number of songs are:
SHIHAD: 22 songs
DEVILSKIN: 21 songs
BLINDSPOTT: 20 songs
CROWDED HOUSE: 10 songs
HEAD LIKE A HOLE: 9 songs
I AM GIANT: 9 songs

23 different Aussi artists have played. The ones with the highest number of songs are:
AC/DC: 37 songs
INXS: 12 songs
COLD CHISEL: 9 songs
SILVERCHAIR: 8 songs
JIMMY BARNES: 7 songs

445 different artists have played. The ones with the highest number of songs are:
METALLICA: 62 songs
PEARL JAM: 48 songs
AC/DC: 37 songs
FOO FIGHTERS: 37 songs
TOOL: 28 songs
LED ZEPPELIN: 25 songs
KINGS OF LEON: 24 songs
LINKIN PARK: 24 songs
GUNS N' ROSES: 23 songs
QUEEN: 23 songs
NIRVANA: 22 songs
SHIHAD: 22 songs
DEVILSKIN: 21 songs
PINK FLOYD: 21 songs

1126 different albums have played. The ones with the highest number of songs are:

The number of songs from each decade are:
1960s: 42 songs
1970s: 243 songs
1980s: 326 songs
1990s: 576 songs
2000s: 462 songs
2010s: 226 songs
2020s: 125 songs