The book "Mathematical Constants" by Steven R. Finch contains 136 sections on constants or classes of constants. The table of numerical values at the back of the book is 23 pages long and about 13 pages of this table are taken up by values between 0 and 1, about 5 pages of values between 1 and 2, 2 pages between 2 and 3, 1 page between 3 and 4, slightly more than half a page for 4-5, less than half a page for 5-6 and about a page for all values above 6.

13, 5, 2, 1, .75, .25 ...

What reasons are there for numerical constants to be following this distribution ?