Figure 1 shows the sampled amplitude of an analogue audio signal recorded over 7 seconds, using a sample rate of 1 Hz and a 3-bit sample resolution (bit depth).

| Time (Seconds) | Sampled Amplitude |
|---|---|
| 0 | 1 |
| 1 | 4 |
| 2 | 6 |
| 3 | 2 |
| 4 | 7 |
| 5 | 5 |
| 6 | 3 |
| 7 | 0 |
Give the 3-bit binary representation of the audio sample at the 5th second.