When did Hungary, Poland, Venezuela, Turkey, and The Philippines began democratic backsliding?

[Cortarán todas las flores, pero jamás detendrán la primavera]

I know but in more recent years/decades when Did Orban, Law and Justice, Chavez, Erdogan and Duterte began acting like strongmen

I'd say they were always strongmen at heart, cause you know, "power doesn't corrupt, power reveals" and all that. I mean yeah, Chavez wasn't as autocratic as his succesor, but he did attempted a military coup in 1992, the disregard for democracy was there from the begining.  The countries' backsliding under those leaders began as soon as they got to power.