SSD - Bytes written

I Have an Intel 520 SSD. I can use smartmontools to ask how much bytes have been written to it:

sudo ./smartctl -q noserial -i -l devstat,0 -l devstat /dev/sda

smartctl 6.2 2013-07-26 r3841 [x86_64-linux-3.2.0-32-generic] (local build)
Copyright (C) 2002-13, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Intel 520 Series SSDs
Device Model:     INTEL SSDSC2CW240A3
Firmware Version: 400i
User Capacity:    240,057,409,536 bytes [240 GB]
Sector Size:      512 bytes logical/physical
Rotation Rate:    Solid State Device
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ACS-2 T13/2015-D revision 3
SATA Version is:  SATA 3.0, 3.0 Gb/s (current: 3.0 Gb/s)
Local Time is:    Sat Jun 21 08:42:06 2014 BST
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

Device Statistics (GP Log 0x04) supported pages
Page Description
  0  List of supported log pages
  1  General Statistics
  4  General Errors Statistics
  6  Transport Statistics
  7  Solid State Device Statistics

Device Statistics (GP Log 0x04)
Page Offset Size         Value  Description
  1  =====  =                =  == General Statistics (rev 2) ==
  1  0x008  4             1129  Lifetime Power-On Resets
  1  0x010  4             8660  Power-on Hours
  1  0x018  6       5401949881  Logical Sectors Written
  1  0x028  6       5794864033  Logical Sectors Read
  4  =====  =                =  == General Errors Statistics (rev 1) ==
  4  0x008  4                0  Number of Reported Uncorrectable Errors
  4  0x010  4             9232  Resets Between Cmd Acceptance and Completion
  6  =====  =                =  == Transport Statistics (rev 1) ==
  6  0x008  4             9232  Number of Hardware Resets
  6  0x010  4             4085  Number of ASR Events
  6  0x018  4                0  Number of Interface CRC Errors
  7  =====  =                =  == Solid State Device Statistics (rev 1) ==
  7  0x008  1              255  Percentage Used Endurance Indicator