The number of observations in a single query is limited to 500,000 to reduce processing and downloading time and prevent a custom query dataset of a few hundreds of megabytes. Specify country, location and/or element to reduce the number of observations to less than 500,000. The status line provides information about the number of observations selected. If the number of observations in your query is less than 500,000, a Next-button appears to create the desired custom dataset.

For downloading a larger amount of data at once, goto the "Download predefined subsets in ASCII" menu item under "Daily data".

The Reset all button brings you back to the initial selections.