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| Ion | No. of levels |
|---|
| Fr I | 123 |
| Fr II | 2 |
| Fr III | 2 |
| Fr IV | 2 |
| Fr V | 2 |
| Fr VI | 2 |
| Fr VII | 2 |
| Fr VIII | 2 |
| Fr IX | 2 |
| Fr X | 2 |
| Fr XI | 2 |
| Fr XII | 2 |
| Fr XIII | 2 |
| Fr XIV | 2 |
| Fr XV | 2 |
| Fr XVI | 2 |
| Fr XVII | 2 |
| Fr XVIII | 2 |
| Fr XIX | 2 |
| Fr XX | 2 |
| Fr XXI | 2 |
| Fr XXII | 2 |
| Fr XXIII | 2 |
| Fr XXIV | 2 |
| Fr XXV | 2 |
| Fr XXVI | 2 |
| Fr XXVII | 2 |
| Fr XXVIII | 2 |
| Fr XXIX | 2 |
| Fr XXX | 2 |
| Fr XXXI | 2 |
| Fr XXXII | 2 |
| Fr XXXIII | 2 |
| Fr XXXIV | 2 |
| Fr XXXV | 2 |
| Fr XXXVI | 2 |
| Fr XXXVII | 2 |
| Fr XXXVIII | 2 |
| Fr XXXIX | 2 |
| Fr XL | 2 |
| Fr XLI | 2 |
| Fr XLII | 2 |
| Fr XLIII | 2 |
| Fr XLIV | 2 |
| Fr XLV | 2 |
| Fr XLVI | 2 |
| Fr XLVII | 2 |
| Fr XLVIII | 2 |
| Fr XLIX | 2 |
| Fr L | 2 |
| Fr LI | 2 |
| Fr LII | 2 |
| Fr LIII | 2 |
| Fr LIV | 2 |
| Fr LV | 2 |
| Fr LVI | 2 |
| Fr LVII | 2 |
| Fr LVIII | 2 |
| Fr LIX | 2 |
| Fr LX | 2 |
| Fr LXI | 2 |
| Fr LXII | 2 |
| Fr LXIII | 2 |
| Fr LXIV | 2 |
| Fr LXV | 2 |
| Fr LXVI | 2 |
| Fr LXVII | 2 |
| Fr LXVIII | 2 |
| Fr LXIX | 2 |
| Fr LXX | 2 |
| Fr LXXI | 2 |
| Fr LXXII | 2 |
| Fr LXXIII | 2 |
| Fr LXXIV | 2 |
| Fr LXXV | 2 |
| Fr LXXVI | 2 |
| Fr LXXVII | 2 |
| Fr LXXVIII | 2 |
| Fr LXXIX | 2 |
| Fr LXXX | 2 |
| Fr LXXXI | 2 |
| Fr LXXXII | 2 |
| Fr LXXXIII | 2 |
| Fr LXXXIV | 2 |
| Fr LXXXV | 20 |
| Fr LXXXVI | 39 |
| Fr LXXXVII | 10 |
| Total for Fr: | 358 |