TABLE 3:     Time intervals required for N2 to recover (to two significant digits) from a perturbation (N4(0) = 310) given increases in economic activity, e.

e Time
0 7
0.01 7
0.02 7
0.03 8
0.04 9
0.05 11
0.06 35
0.07 69
0.08 156
0.09 383
0.10 > 5000