TABLE 3-1 Hypothetical Inflation Adjustments for Person Income in the ACS

Data: Consumer Price Index for All Urban Consumers (CPI-U), rounded (1983–1984 = 100)

Year

Jan.

Feb.

Mar.

Apr.

May

June

July

Aug.

Sept.

Oct.

Nov.

Dec.

Average

2004

185

186

187

187

189

190

189

190

190

191

191

190

188.9

2005

191

192

193

195

194

195

195

196

199

199

198

197

195.3

2006

198

199

200

201

202

203

204

205

206

207

208

209

203.5

2007

210

211

211

212

213

214

215

216

216

217

218

219

214.5

(1) Adjustment Factors (x) for 2005 ACS 1-Year Period Person Income (x is applied to prior 12 months’ reported income)

January 2005 sample persons (income reported for 01/04–12/04)

 

x = [195.3/((185 + … + 190)/12)] = 1.034

February 2005 sample persons (income reported for 02/04–01/05)

 

x = [195.3/((186 + … + 191)/12)] = 1.032

.

 

 

 

 

.

 

.

 

 

 

 

 

 

.

 

 

 

 

.

 

.

 

 

 

 

 

 

.

 

 

 

 

.

 

.

 

 

 

 

 

 

November 2005 sample persons (income reported for 11/04–10/05)

 

x = [195.3/((191 + … + 199)/12)] = 1.006

December 2005 sample persons (income reported for 12/04–11/05)

 

x = [195.3/((190 + … + 198)/12)] = 1.003

(2) Adjustment Factors (x) for 2006 ACS 1-Year Period Person Income

For each monthly sample as in (1) x = [203.5/(average of factors for previous 12 months)]

(3) Adjustment Factors (x) for 2007 ACS 1-Year Period Person Income

For each monthly sample as in (1) x = [214.5/(average of factors for previous 12 months)]

(4) Adjustment Factors for 2005–2007 ACS 3-Year Period Person Income

a. For 2005 sample persons

x = 214.5/195.3 = 1.09, x is multiplied by the adjusted 2005 income (1)

b. For 2006 sample persons

x = 214.5/203.5 = 1.05, x is multiplied by the adjusted 2006 income (2)

c. For 2007 sample persons

x = 214.5/214.5 = 1.00, x is multiplied by the adjusted 2007 income (3)

(5) 2005–2007 ACS 3-Year Period Person Income Estimates for All Persons

Calculated as ( 4.a + 4.b + 4.c)/3

SOURCE: See http://www.bls.gov for monthly CPIs through February 2006; other months are hypothetical.



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