Statistics of level 1 packages for Chinese (Traditional) in unstable:
Read http://d-i.debian.org/l10n-stats

Outdated:

Translated:
  zipl-installer/*/debian/po/zh_TW.po 1t [Tetralet]
  s390-netdevice/*/debian/po/zh_TW.po 29t [Anthony Wong]
  s390-dasd/*/debian/po/zh_TW.po 16t [Yao Wei (魏銘廷)]
  pkgsel/*/debian/po/zh_TW.po 12t [Louies]
  partman-xfs/*/debian/po/zh_TW.po 2t [Tetralet]
  partman-target/*/debian/po/zh_TW.po 25t [Yao Wei (魏銘廷)]
  partman-prep/*/debian/po/zh_TW.po 5t [Tetralet]
  partman-partitioning/*/debian/po/zh_TW.po 60t [Louies]
  partman-md/*/debian/po/zh_TW.po 58t [Chang-Chia Tseng]
  partman-lvm/*/debian/po/zh_TW.po 112t [Chang-Chia Tseng]
  partman-jfs/*/debian/po/zh_TW.po 8t [Yao Wei (魏銘廷)]
  partman-ext3/*/debian/po/zh_TW.po 14t [Yao Wei (魏銘廷)]
  partman-efi/*/debian/po/zh_TW.po 11t [Yao Wei (魏銘廷)]
  partman-crypto/*/debian/po/zh_TW.po 98t [Chang-Chia Tseng]
  partman-basicmethods/*/debian/po/zh_TW.po 13t [Yao Wei (魏銘廷)]
  partman-basicfilesystems/*/debian/po/zh_TW.po 84t [Louies]
  partman-base/*/debian/po/zh_TW.po 68t [Louies]
  partman-auto-lvm/*/debian/po/zh_TW.po 30t [Louies]
  partman-auto/*/debian/po/zh_TW.po 24t [Louies]
  nobootloader/*/debian/po/zh_TW.po 15t [Tetralet]
  network-console/*/debian/po/zh_TW.po 24t [Yao Wei (魏銘廷)]
  netcfg/*/debian/po/zh_TW.po 123t [Louies]
  net-retriever/*/debian/po/zh_TW.po 6t [Yao Wei (魏銘廷)]
  mdcfg/*/debian/po/zh_TW.po 43t [Tetralet]
  main-menu/*/debian/po/zh_TW.po 6t [Yao Wei (魏銘廷)]
  lvmcfg/*/debian/po/zh_TW.po 80t [Tetralet]
  localechooser/*/debian/po/zh_TW.po 45t [Yao Wei (魏銘廷)]
  lilo-installer/*/debian/po/zh_TW.po 27t [Yao Wei (魏銘廷)]
  kbd-chooser/*/debian/po/zh_TW.po 14t [Yao Wei (魏銘廷)]
  iso-scan/*/debian/po/zh_TW.po 31t [Chang-Chia Tseng]
  hw-detect/*/debian/po/zh_TW.po 43t [Yao Wei (魏銘廷)]
  grub-installer/*/debian/po/zh_TW.po 57t [ButterflyOfFire]
  finish-install/*/debian/po/zh_TW.po 9t [Yao Wei (魏銘廷)]
  elilo-installer/*/debian/po/zh_TW.po 11t [Yao Wei (魏銘廷)]
  debian-installer-utils/*/debian/po/zh_TW.po 14t [Yao Wei (魏銘廷)]
  clock-setup/*/debian/po/zh_TW.po 15t [Yao Wei (魏銘廷)]
  choose-mirror/*/debian/po/zh_TW.po 40t [Louies]
  cdrom-retriever/*/debian/po/zh_TW.po 3t [Tetralet]
  cdrom-detect/*/debian/po/zh_TW.po 28t [Yao Wei (魏銘廷)]
  cdrom-checker/*/debian/po/zh_TW.po 20t [Louies]
  base-installer/*/debian/po/zh_TW.po 94t [Yao Wei (魏銘廷)]
  arcboot-installer/*/debian/po/zh_TW.po 11t [Tetralet]
  anna/*/debian/po/zh_TW.po 12t [Chang-Chia Tseng]

Missing files:
  aboot-installer/*/debian/po/zh_TW.po 0u
  colo-installer/*/debian/po/zh_TW.po 0u
  floppy-retriever/*/debian/po/zh_TW.po 0u
  mountfloppy/*/debian/po/zh_TW.po 0u
  partconf/*/debian/po/zh_TW.po 0u
  partitioner/*/debian/po/zh_TW.po 0u
  partman-newworld/*/debian/po/zh_TW.po 0u
  partman-palo/*/debian/po/zh_TW.po 0u
  partman-reiserfs/*/debian/po/zh_TW.po 0u
  prep-installer/*/debian/po/zh_TW.po 0u
  quik-installer/*/debian/po/zh_TW.po 0u
  yaboot-installer/*/debian/po/zh_TW.po 0u


Global statistics: 1441t0f0u (100%)     (total strings: 1441=100%)
(From all zh_TW.po files)