i have two sets of data

on the left column represents time, hours. i want the numbers on the right
to be appear on the graph at the appropriate hour. so 9.0 should appear at
the 43rd hour on the chart, 4.8 should appear at the 52nd hour on the chart,
the hours being spread by ones on the x axis.

43 9.0
52 4.8
81 5.9
242 1.5
146 3.8
159 2.9
194 3.3
217 2.6
242 3.5
251 2.9
312 3.0
355 2.0
454 1.9