This script only has a few settings you need to check and adapt. They are at the start of the startReports.php script.
This script will load the previous years data only once.
The current year data will be loaded 2 times a day maximum. All data is saved in a "cache" folder on your server.
The download contains tranlation files for English, Dutch, French and German.
Other languages can be added using standard language files.
2019-11-24: More information about the included solution for all problems / missing data with WU .CSV
An example as used in a Saratoga template check here