DMT Bits Per Bin detailed description

[JeffyB]

Could some please explain what the "DMT Bits Per Bin" values represent towards the end of this show command? I have a partial understanding, something to do with the bandwidth upload/download speeds and QoS of line/ADSL splitter, but could do with a better understanding.

The router is a Cisco 1760 with a WIC-1ADSL.

Many thanks

sh dsl int atm0/0

Alcatel 20150 chipset information
ATU-R (DS) ATU-C (US)
Modem Status: Showtime (DMTDSL_SHOWTIME)
DSL Mode: ITU G.992.1 (G.DMT)
ITU STD NUM: 0x01 0x1
Vendor ID: 'ALCB' 'TSTC'
Vendor Specific: 0x0000 0x0000
Vendor Country: 0x00 0xB5
Capacity Used: 16% 37%
Noise Margin: 19.0 dB 27.0 dB
Output Power: 20.0 dBm 10.5 dBm
Attenuation: 22.0 dB 10.0 dB
Defect Status: None None
Last Fail Code: None
Selftest Result: 0x00
Subfunction: 0x15
Interrupts: 1333 (0 spurious)
PHY Access Err: 0
Activations: 1
Init FW: embedded
Operation FW: embedded
SW Version: 3.8131
FW Version: 0x1A04

Interleave Fast Interleave Fast
Speed (kbps): 0 1152 0 288
Reed-Solomon EC: 0 0 0 0
CRC Errors: 0 0 0 89
Header Errors: 0 0 0 19
Bit Errors: 0 0
BER Valid sec: 0 0
BER Invalid sec: 0 0

DMT Bits Per Bin
00: 0 0 0 0 0 0 0 2 0 3 4 5 5 6 5 5
10: 5 5 5 5 5 5 5 5 4 4 4 3 3 2 0 0
20: 0 0 0 0 0 0 0 0 0 0 0 0 2 2 2 2
30: 2 3 3 3 4 4 4 4 4 4 4 4 4 4 4 4
40: 0 4 4 3 4 3 4 3 3 3 2 3 3 3 3 3
50: 3 3 3 3 3 3 3 2 3 3 2 2 2 2 2 2
60: 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
70: 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
80: 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
90: 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
A0: 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
B0: 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
C0: 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
D0: 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0
E0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
F0: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

DSL: Training log buffer capability is not enable