What a lovely plot! (Thanks to Mathematica's handling of the imported data.)

The input pulse has an amplitude of 0.153 V and a half width of 61.38 n s.

The first reflected peak has an amplitude of 3.011 µ V and a half-width of 0.17 µ s.

As you can see, the pulse gets broader and has a smaller amplitude.

One thing to consider is that the oscilloscope used for this lab has a response time of about 10 ns.  Therefore, the plots are only accurate to within the accuracy of the scope and may actually be broader or more narrow than the scope displays.