Rb/NIST/Rb_p21__NIST.trans
           4            3 1.2000e+02    3.721000e+04
           3            2 7.6000e+02    4.079000e+04
           3            1 1.4000e+04    9.097000e+04
           4            1 1.1000e+04    1.281800e+05
           5            3 8.1000e+04    1.599500e+05
           9            5 2.0000e+11    9.565400e+05
           8            4 2.6000e+11    1.004950e+06
           6            1 2.5000e+09    1.015120e+06
           7            1 6.8000e+11    1.019630e+06