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Table 2

Statistics of the observed sample.

N NEDa Not in NED z b No/uncertain z X or rc No X or r

Polarized targets 124 39 85 44 80 124
Unpolarized targets 58 8 50 23 35 39 19

Notes. 

(a)

NED entry as BL Lac for the target quoted in C05.

(b)

A reliable redshift exists for the target in C05.

(c)

X-ray or radio data exist for the target in the literature.

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