The daily mortality surveillance system in Spain has been tracking the actual mortality burden of the epidemic in Spain (as opposed to confirmed cases that have died). Some examples from the last report (here: https://www.isciii.es/QueHacemos/Servicios/VigilanciaSaludPublicaRENAVE/EnfermedadesTransmisibles/MoMo/Paginas/Informes-MoMo-2020.aspx)

Castilla y Leon, that used to have around 60 deaths a day, went up to 200 last week. In the March 18-April 2 period, they estimated a 146% increase in deaths

Castilla-La Mancha, with around 50 a week previous years, went up to >200. In the Mar 14-April 1 period, 185% increase

Madrid, peaked at 400 two weeks ago from an average of ~110 in previous years. From Mar 10 to Mar 28, a 110% increase in mortality. Keep in mind Madrid has been struggling to keep up with registering deaths (see previous reports, and even the decrease in mortality here):