Er/NIST/Er_p67__NIST.states
           1         0.000000      2     0.5   600.000000 1s                                                 2S                              +
           2 404225360.00      2     0.5   620.000000 2p                                                 2P                              -
           3 413485570.00      4     1.5   620.000000 2p                                                 2P                              -
           4 404362800.00      2     0.5   600.000000 2s                                                 2S                              +
           5 482010100.00      2     0.5  2000.000000 3p                                                 2P                              -
           6 484766100.00      4     1.5  1500.000000 3p                                                 2P                              -
           7 482052000.00      2     0.5  3000.000000 3s                                                 2S                              +
           8 484761120.00      4     1.5    60.000000 3d                                                 2D                              +
           9 485568510.00      6     2.5    60.000000 3d                                                 2D                              +