How to remove the link on Taxonomy display using shortcode?

When I use the shortcode to display Taxonomy, it shows the content as link.

Here is the shortcode I use:
<?php echo do_shortcode('[tax id="year" before="" separator=", " after=""]'); ?>

For instance, I have a custom post with Taxonomy year = 2012.

Here is the link URL on the content, 2012, that brings out by the shortcode above:
http://my-domain.com/year/2012/

I want to show the content, "2012", without link, just pure text.

How to achieve that?

Thanks :slight_smile: