iw wlan0 survey dump

Here is what I got. Looks like its busy most of the time, doesn't it?

Survey data from wlan0
        frequency:                      2412 MHz
        channel active time:            139291 ms
        channel busy time:              135849 ms
        channel receive time:           0 ms
        channel transmit time:          0 ms
Survey data from wlan0
        frequency:                      2417 MHz
Survey data from wlan0
        frequency:                      2422 MHz
Survey data from wlan0
        frequency:                      2427 MHz
Survey data from wlan0
        frequency:                      2432 MHz
Survey data from wlan0
        frequency:                      2437 MHz
Survey data from wlan0
        frequency:                      2442 MHz
Survey data from wlan0
        frequency:                      2447 MHz
Survey data from wlan0
        frequency:                      2452 MHz
Survey data from wlan0
        frequency:                      2457 MHz
Survey data from wlan0
        frequency:                      2462 MHz
Survey data from wlan0
        frequency:                      5180 MHz
Survey data from wlan0
        frequency:                      5200 MHz
Survey data from wlan0
        frequency:                      5220 MHz
Survey data from wlan0
        frequency:                      5240 MHz
Survey data from wlan0
        frequency:                      5745 MHz
Survey data from wlan0
        frequency:                      5765 MHz
Survey data from wlan0
        frequency:                      5785 MHz
Survey data from wlan0
        frequency:                      5805 MHz
Survey data from wlan0
        frequency:                      5825 MHz