1617.84   1648.09
   1651.09   1669.29
   1682.64   1703.95
   1706.95   1736.40
   1739.40   1749.74
   1752.74   1768.96
   1771.96   1814.17
   1817.17   1837.36
   1840.36   1920.86
   1923.86   1936.56