Coming up on three years and I still don't have a 5 digit CL: mine currently cap out at 9K.
For various reasons north of 10K has never been a goal of mine: 5K was my magic number as that was the Visa Siggy line which some products I wanted (a CSP at one point) didn't come lower than that. I'm fairly confident whenever I want to take the time and effort to put together two decent paystubs from my part-time employer I could get a 10K CL from a couple of the places I do business with, but it simply doesn't have much value for me on most of my cards: I'd like a larger CL on the Fidelity Amex for certain arbitrage plays, and I'd like to have a nice large low-APR limit for floating a balance if I ever need to (financial defense runway) but that probably comes whenever I finally close the DCU secured card and open their plain jane card as it has a very low rate and I have a good relationship with them.
Realistically speaking though, I put rewards first, and as such even my baby Chase Freedom at 1K is just fine for my needs: I can cap out the reward limits there no problem on their typical categories when it's something I'd use, without going over 1K in any given month. Think restaurants was the top when I reached $800 or whatever in a given month, and my BCP CL is mostly wasted other than large purchases now that don't fit on the Fidelity card.
Just under 4 years, got a CLI on my boa from $5000 to $14000
From my first card ($500 limit), 14 months as of today. Went from a $500 Freedom with no established history this time last year to a $12k CSP as of today. Broke the 5k barrier back in March and again in May. $500 total credit to $31.3k. To be fair I did use a transfer MSD from overseas trick to get my AAoA up on my AMEXs though.
First card $300 Jan 2014, then Sep 23r $10k from NASA 