I have monthly level data. I want to convert it into weekly data using interpolate. Here is what data looks like: Year_Month Period Observation Value 1-Month Net Change 1 1986-01-01 M01 6.7 -0.3 2 1986-02-01 M02 7.2 0.5 3 1986-03-01 M03 7.2 0.0

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