Given the hint from David, here's what 30s coding produces:

 3627 35
 2853 81
 2355 05
 2228 68
 2192 34
 2172 94
 2083 76
 1985 11
 1852 60
 1752 65
 1728 90
 1676 83
 1657 37
 1639 53
 1550 91
 1413 47
 1373 20
 1362 93
 1356 03
 1256 82
 1187 74
 1184 62
 1151 46
 1113 14
 1033 92
  915 16
  778 49
  762 30
  714 42
  678 58
  588 57
  585 54
  534 32
  531 17
  521 39
  516 70
  504 41
  481 26
  476 13
  421 15
  375 33
  366 52
  323 06
  266 51
  246 22
  235 78
  235 55
  225 86
  193 28
  181 01
  178 00
  175 18
  171 80
  137 45
  133 31
  119 43
   95 12
   87 08
   86 19
   83 40
   68 44
   47 85

As it's only 30s, I'll leave it to others to fill in the data about which area is which MSC. (Community wikied so that others can easily do that). Oh, it's the 2007 data (most recent) by the way.

(yeah, yeah, I know - skewed results since it came from the MSC ... yawn, think of a new complaint, please.)