Welcome to FT! As others have mentioned, it's route, time, and aircraft dependent.
I qualify for Gold on segments with the occasional year as Platinum (could easily make Platinum if I put all my travel on AA but I go for timing/convenience/cost over loyalty). This means that I have low EQM earning so I earn them very infrequently. I do have good luck redeeming them (including recently on DCA-MIA for myself and a companion, which cleared at T-24). As a result I am the odd one out on these boards who routinely has a single digit number of upgrades in the bank. Currently I have 7 but only have that many because I wrote in asking for partial credit at the end of the year.