mamiRna not3p.not5p items length stats

Q1 19.000000
median 21.000000
Q3 21.000000
average 20.080537
min 15.000000
max 26.000000
count 894
total 17952.000000
standard deviation 2.010109

 15 * 7
 16 *********** 55
 17 ************* 63
 18 ************** 70
 19 ****************** 89
 20 ****************************** 145
 21 ************************************************************ 290
 22 *********************** 109
 23 ******** 40
 24 *** 15
 25 ** 9
 26  2