Table 4. Uncertainty^a in the cost of a new law or regulation, New Zealand, 1999–2010.

Variable	Cost (US$)
	New act	New regulation
Mean	2 551 000	382 000
Median	2 405 000	360 000
2.5th percentile	1 476 000	221 000
25th percentile	2 002 000	300 000
75th percentile	2 937 000	440 000
97.5th percentile	4 436 000	665 000

US$, United States dollar.

^a Percentiles were estimated by probabilistic sensitivity analysis involving 2000 iterations using @Risk for Excel version 5.7 (Palisade Corporation, Ithaca, USA).