The last time a year's total dropped below that number was 1963.
In the six seasons since, each league's total dropped four times.
The total dropped slightly in 1992, he said, and a 1993 survey is under way.
He said that by the end of 1948, the total had dropped more than half, to somewhere between 16 million and 18 million.
This week's report is expected to show that the total has dropped still further.
A total of 397, or 28 percent, dropped out of high school.
By 1996, county figures showed, the total had dropped to 53 pounds, with a value of $400.
He sustained a knee injury last season and his save total dropped to 16.
The cut was the largest since 1999, when the total dropped by $13.4 million.
The totals dropped across the board last year, with 54 players striking out 100 or more times.