AD8512 Half-Wave and Full-Wave Rectifiers

It was produced in the p16 of the data sheet "Half-Wave and Full-Wave Rectifiers" circuit uses the AD8512 our customers.

It is the output level of the output signal is different.
I will attach the output waveform.

Why level or probably would be different?
In addition, the What is the cause?

Regards,
Yuji

AD8512_Waveform.pdf