  90 230   S     6.10    0.90   MA    6.80    0.60    0.832                230Th
  90 231   S     6.00    0.70   MA    6.70    0.50    0.830                231Th
  90 232   S     5.80    0.90   MA    6.70    0.60    0.828                232Th
  90 233   S     5.10    0.70   MA    6.65    0.50    0.806                233Th
