mamiRna 3p only items length stats

Q1 22.000000
median 22.000000
Q3 23.000000
average 22.127820
min 20.000000
max 25.000000
count 266
total 5886.000000
standard deviation 0.837008

 20 * 2
 21 ********************* 50
 22 ************************************************************ 143
 23 ************************* 59
 24 *** 7
 25 ** 5