NATIONAL RESH CORP

Ticker: NRC CUSIP: 637372202 Class: Common Stock

COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS's Holding History (CIK: 0001083190)

Note: Option positions (PUT/CALL) are excluded.

Q3 2013

Shares 58,020 Value ($000) $1,093 Avg Close $17.18 Range $15.36 - $18.84

Q2 2013

Shares 58,020 Value ($000) $1,044 Avg Close $15.97 Range $12.36 - $21.31

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2013	58,020	$1,093	$17.18	$15.36 - $18.84
Q2 2013	58,020	$1,044	$15.97	$12.36 - $21.31