The Durbin-Watson statistic for the fit of the least squares regression in this figure is 0.25. Should you interpret the value of  as indicating dependence, or is it really an artifact of a different...

The Durbin-Watson statistic for the fit of the least squares regression in this figure is 0.25. Should you interpret the value of
 as indicating dependence, or is it really an artifact of a different problem? (Note: The value of the explanatory variable is getting larger with the sequence order of the data.)