Need BCD Switch information

I'm looking for a supplier of an inexpensive "complimentary" BCD switch.
I have been through the Omeron catalog, and find them very confusing not to mention pricey.
I'm looking for a switch that has 4 sections, push button pcb mount.
the output should be as follows:

1 2 4 8 C
* * * * * 0
* * * * 1
* * * * 2
* * * 3
* * * * 4
* * * 5
* * * 6
* * 7
* * * * 8
* * * 9

Thanks in advance!

Could you explain how to read the truth table in your diagram. In particular the number of asterisks on each line is confusing. Generally a single unit pushbutton bcd switch has 4 output pins and a common pin. The pins are joined to the common to indicate which of the 10 positions are selected on the switch.

Pos indicates the digit displayed on the switch, [3:0] indicates the connection of each respective bit to the common line.

Pos / [3:0]
0 / 0000
1 / 0001
2 / 0010
3 / 0011
4 / 0100
5 / 0101
6 / 0110
7 / 0111
8 / 1000
9 / 1001