Table 5: Characterization of the numerical instances.

Initial costIdeal cost
Light levelΔReal levelΔHeavy levelΔ

20159.975124.6652159.401324.0914251.0328115.7229135.3099

40304.367640.6803317.630653.9433467.3612203.6739263.6873

60458.126060.9716462.897765.7433707.0593309.9049397.1544

80594.5243968.0321601.144274.6524870.232343.7424526.4918

100734.502986.7962737.129989.42321048.1935400.4868647.7067

120898.2554118.6006884.1184104.46361286.6367506.9819779.6548

1401057.5950140.84751042.6900125.94251510.8252594.0777916.7475

1601203.5684157.88311205.3941159.70881699.9332654.24791045.6853

1801378.5382195.34341388.4729205.27811986.7625803.56771183.1948

2001566.6917227.4751548.7675219.55082300.6803971.46361329.2167