The Incredible Shrinking Cramer?

By Brian 

Jim Cramer‘s ratings must be causing some alarm in Engelwood Cliffs.

He fell below 200,000 total viewers at 6pm in May — averaging 175,000 for the month, a 29 percent drop from his 247,000 average in May 2006. (In March, he averaged 255,000, and in April, he averaged 205,000.)

In the 25-54 demo, the declines may be more ominous. Here’s the trend from January to May: 87,000, 72,000, 88,000, 59,000, 50,000. His May demo delivery of 50,000 is his worst in many months, and down 50 percent from last May’s average of 100,000…