Here's the bottom line for the ethanol tax credits additive to the White House-GOP tax compromise: $6 billion in subsidies for 2011. $10 per extra gallon of ethanol. $14 million per extra job. $1.2 billion to attract one extra Senate vote. In a season of giving in Washington, the ethanol lobby may come away with even more than it hoped for and its ardent defenders sought. The Senate version of the $858 billion tax bill unveiled late Thursday --