Does the amount of clam you get depend on the BTC / LTC / DOGE amount on the address?
No each address above "dust" (explained bellow for BTC) is given the same number of CLAMS.
Edit:
[16:06] <@xploited> dust, whatever said coin considered dust at the time
[16:15] <@xploited> here
[16:15] <@xploited> CFeeRate minRelayTxFee = CFeeRate(1000);
[16:15] <@xploited> err
[16:15] <@xploited> /** Fees smaller than this (in satoshi) are considered zero fee (for relaying and mining) */
[16:15] <@xploited> CFeeRate minRelayTxFee = CFeeRate(1000);
Also how much is 1 clam worth / How much do I get per wallet address?
The last CLAM trade was for
Last: 0.00077282 BTC. Via Poloniex
https://poloniex.com/exchange/btc_clam.
Each "good" address gives you 4.6 CLAM.