As posted, your data fields are separated by one or more spaces and Line 3 has "43" as its third field (eg $field[2]... so the result from your code is as you should expect. The same applies to Line 5. And I'm not absolutely clear about what you're trying to tell us in the last line of your post.

Your failure to use code tags (viz, the formatting instructions at the text entry box where you created your node) makes it difficult to tell exactly how you intended the data to be structured -- you used multiple non-breaking space entities, but did you do so to match the actual spaces (0x20) in your data or to make the rendered appearance like that of a table with tabs?

In short, more information from you and closer attention to the local formatting directions will make it easier for us to help you.