Repeated time samples in *.csv files

I am getting data from a MetaMotion R board as a *.csv file.  I am streaming accelerometer (200 Hz), gyroscope (200 Hz), and magnetometer (25 Hz) from 2 boards simultaneously using the Windows app.  I notice in the *.csv files that there are repeated time values, and that they do not match the sampling rate.  For example, for the accelerometer data, the "elapsed (s)" column gives, 0, 0, 0, 0.011, 0.011, 0.011, 0.022, 0.022, 0.022, etc.  Although the time values repeat, the measurements are unique.  I am having trouble reconstructing the time vector.  Is there a way to fix this?
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