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:
Sub InsertCount()
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)
Else
Set rngInsert = Range("A" & Rows.Count).End(xlUp).Offset(1, 0).Resize(lngCount, 1)
End If
rngInsert.Value = varInsert
End If
End Sub
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.