It varies here. All the main roads got the HPS upgrade first. The residential roads it varied. Some older residential roads here had HPS while some newer roads had MV. HPS is dominant here, although quite a few mercs are still here compared to other places in the US
HPS became dominant on the main streets years ago,its only now that im seeing mass replacements in residental areas...these nema's are nice fixtures,i've seen some of them burning for years with no problems...then we have new fixtures that sometimes become problematic almost immediately.