Are these normal O2 sensor values?

Sensor 1	Sensor 2
Oscillates between 0.1 V and 0.75 V	Stays at 0.45 V

1.1L I4 petrol engine
Measurements taken about six minutes after starting

There was a fault code for sensor 2 that I cleared about 3 000 km ago, but it hasn't come back since. There was never a CEL