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| Ion | No. of levels |
|---|
| Gd I | 634 |
| Gd II | 321 |
| Gd III | 28 |
| Gd IV | 5 |
| Gd V | 2 |
| Gd VI | 2 |
| Gd VII | 2 |
| Gd VIII | 2 |
| Gd IX | 2 |
| Gd X | 2 |
| Gd XI | 2 |
| Gd XII | 2 |
| Gd XIII | 2 |
| Gd XIV | 2 |
| Gd XV | 2 |
| Gd XVI | 2 |
| Gd XVII | 2 |
| Gd XVIII | 2 |
| Gd XIX | 2 |
| Gd XX | 2 |
| Gd XXI | 2 |
| Gd XXII | 2 |
| Gd XXIII | 2 |
| Gd XXIV | 2 |
| Gd XXV | 2 |
| Gd XXVI | 2 |
| Gd XXVII | 2 |
| Gd XXVIII | 2 |
| Gd XXIX | 2 |
| Gd XXX | 2 |
| Gd XXXI | 2 |
| Gd XXXII | 2 |
| Gd XXXIII | 2 |
| Gd XXXIV | 2 |
| Gd XXXV | 2 |
| Gd XXXVI | 2 |
| Gd XXXVII | 8 |
| Gd XXXVIII | 2 |
| Gd XXXIX | 2 |
| Gd XL | 2 |
| Gd XLI | 2 |
| Gd XLII | 2 |
| Gd XLIII | 2 |
| Gd XLIV | 2 |
| Gd XLV | 2 |
| Gd XLVI | 2 |
| Gd XLVII | 2 |
| Gd XLVIII | 2 |
| Gd XLIX | 2 |
| Gd L | 2 |
| Gd LI | 2 |
| Gd LII | 2 |
| Gd LIII | 2 |
| Gd LIV | 2 |
| Gd LV | 2 |
| Gd LVI | 2 |
| Gd LVII | 2 |
| Gd LVIII | 2 |
| Gd LIX | 2 |
| Gd LX | 2 |
| Gd LXI | 2 |
| Gd LXII | 20 |
| Gd LXIII | 39 |
| Gd LXIV | 10 |
| Total for Gd: | 1177 |