Comparison of average performance of RGA and NRGA when injecting individuals from the diff2 problem.
Figure: 52 cities problem. Optimal tour length is 7542, the NRGA tour length
is 7717.1, and the RGA tour length is 8290.4
Figure: 76 cities problem. Optimal tour length is 538, the NRGA tour length
is 559.8, and the RGA tour length is 571.2
Figure: 105 cities problem. Optimal tour length is 14379, the NRGA tour length
is 15442.3, and the RGA tour length is 16946
Figure: 127 cities problem. Optimal tour length is 118282, the NRGA tour length
is 130610, and the RGA tour length is 131052