Exhibit 2.

Percent^* of persons with self-reported schizophrenia using each drug during the study year (n=237)

Atypical Antipsychotic Drug	Percent with use in 1996/1997	Percent with use in 2004/2005	Growth in use (2004/2005 / 1996/1997)
Clozapine	3.9% (2.4)	4.8% (2.9)	21.7%
Olanzapine	12.1% (3.6)	35.0% (6.2)	189.9%
Quetiapine	--	14.4% (4.6)	--
Risperidone	12.9% (4.9)	19.4% (4.6)	51.2%
Ziprasidone	--	10.1% (3.7)	--
Aripiprazole	--	15.6% (4.4)	--
Any	26.7% (6.6)	75.2% (5.0)	181.9%

^*Percents reflect percentage of people reporting one or more filled prescriptions during the year (quetiapine, ziprasidone, and aripiprazole were not available in 1996/1997). Persons may report use of more than one medication, so sum of percents is over 100%. Figures in parentheses are linearized standard errors.

Source: Authors’ calculations from 1996−2005 Medical Expenditure Panel Survey (pooled weights).