#Distribution
#from to #ORIs freq%
120 139   1     1.4
160 179   1     1.4
200 219   2     2.9
240 259   1     1.4
260 279   1     1.4
300 319   3     4.3
320 339   4     5.7
340 359   2     2.9
360 379   9    12.9
380 399  15    21.4
400 419   6     8.6
420 439  12    17.1
440 459   6     8.6
460 479   3     4.3
480 499   2     2.9
500 519   1     1.4
520 539   1     1.4
#Number of ORIs 70 Mean value=381.6, dispersion=71.9