I do not know if there is a "standard" pin numbering for this connector; in an attempt to avoid confusion if there is, I identify the pins here with letters rather than numbers. This is a view of the connector on the board, held with the pins pointing towards you. (Note the letter I is skipped.)

               _______
              |       |
        +-----+       +-----+
        | A   B   C   D   E |
        |                   |
        | F   G   H   J   K |
        +-------------------+