The tables
The writer used the correct term in the sense that the plural form of the singular word "table" was used. However, by not indicating the number of tables involved in the presentation (There are 2 tables presented), a lack of clarity was formed in the sentence presentation. The reader must immediately know how many images are presented, and what each table represents in order to create a proper mental picture of the reporting basis.
between 1999 and 2004
This should have been presented as a second paragraph. This is necessary in order to seperate the image information from the rest of the information presentation. Since this is the yearly coverage reference, it needs its own sentence presentation. Again, this is for clarity purposes. Each sentence must contain only 1 thought presentation in order to achieve the required sentence clarity in every paragraph.
As a general trend
Good work. This trending sentence is well placed. However, it failed to present the value of money used for the measurement (millions). So, why it is good and clear, it needed another bit of highlighted information to complete the summary.
A glance at the tables
Is this the first or second image? Clarify and use the table title as reference. This is to be presented in the singular form of tables as well since there is only one image for coffee and another for bananas.
For a clear comparison analysis and report, both reporting paragraphs must refer to the image that it is anchored to. Good work with the report though. It is acceptable and will get a passing mark. It would have gotten a better score if my observations above were corrected prior to submission for scoring.