The Name Box may be your best bet here - it's the box in the upper left of your worksheet, between the column headers and the ribbon, which shows the currently active cell address:
Click in there and replace "A1" with "A1:A92" and hit enter. This will select the appropriate rows. Then, without clicking anywhere else, type in the measurement you want and hit Ctrl+Enter. The value will be placed in all the highlight cells. You can repeat this for as many sets as you need.
Next option would be this macro:
Dim varInsert As Variant
Dim lngCount As Long
Dim rngInsert As Range
varInsert = InputBox("What value do you want to repeat?")
lngCount = InputBox("How many times?")
If Len(varInsert) > 0 And _
lngCount > 0 Then
If Range("A" & Rows.Count).End(xlUp).Row = 1 Then
Set rngInsert = Range("A1", "A" & lngCount)
Set rngInsert = Range("A" & Rows.Count).End(xlUp).Offset(1, 0).Resize(lngCount, 1)
rngInsert.Value = varInsert
It will ask you what value you want to insert, then how many times to insert it, then put that value into the first free row of column A and repeat it as many times as necessary.