When did the French start lighting up the Eiffel tower with fireworks for Bastille Day?

Even before it was finished...

Ainsi, dès 1888, avant même son achèvement, des feux d'artifices étaient tirés depuis le deuxième étage, et encore maintenant, il est le lieu de rendez-vous des parisiens tous les 14 juillet.

[So, as soon as 1888, even before it was finished, fireworks were fired from the second level, and up to now, it is the meeting point of Parisian people every July 14th.]