Calculating the current
Generally with this sot of circuit, power out = approximately 75% of power in.

If power out is 6.5 x 0.2 (= 1.3 watts) then power in will be about 1.73 watts. Given that the voltage in is 220 volts, the current in will be approximately 1.73/220 = 8mA.

However, there will be an AC component of the current flowing into the device that neither gets converted to useful output power nor heats anything. This is related to power factor and harmonic distortion of the current waveform.

This is hard to calculate but could be another 10mA on top of the 8mA that generates output power and heat.