What are the thermal resistances (theta-JA and JC) of the MAX253?

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The MAX253 comes in four different packages, all with 8 pins: μMAX, PDIP, SO, and CDIP. Here are the thermal resistances theta-JA and JC for all four packages:

μMAX

Theta-JA (C / W) 
 Theta-JC (C / W)

Single-Layer Board 
 221 
 42

Multi-Layer Board 
 206.3 
 42

PDIP

Theta-JA (C / W) 
 Theta-JC (C / W)

Single-Layer Board 
 110 
 40

Multi-Layer Board 
 N/A 
 N/A

SO

Theta-JA (C / W) 
 Theta-JC (C / W)

Single-Layer Board 
 170 
 40

Multi-Layer Board 
 132 
 38

CDIP

Theta-JA (C / W) 
 Theta-JC (C / W)

Single-Layer Board 
 125 
 16

Multi-Layer Board 
 N/A 
 N/A

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What are the thermal resistances (theta-JA and JC) of the MAX253?

	Theta-JA (C / W)	Theta-JC (C / W)
Single-Layer Board	221	42
Multi-Layer Board	206.3	42

	Theta-JA (C / W)	Theta-JC (C / W)
Single-Layer Board	110	40
Multi-Layer Board	N/A	N/A

	Theta-JA (C / W)	Theta-JC (C / W)
Single-Layer Board	170	40
Multi-Layer Board	132	38

	Theta-JA (C / W)	Theta-JC (C / W)
Single-Layer Board	125	16
Multi-Layer Board	N/A	N/A