Why is this important to you?

I think many people who have been here for five years or more value their privacy and wouldn't divulge information like that for security purposes too.
Some lunatic could start hunting holders here even if users are supposed to be anonymous.

I first purchased BTC in 2012. The during 2012-2013, I received a lot of BTC from various faucets and other give-away sites such as Rugatu, Bittrivia and Bitcointalk signature campaigns. Unfortunately, in 2013 I lost around 60% of my coins when LitecoinGlobal closed down. And again, in 2015 I was facing some financial hardship and I had to sell around 75% of my remaining BTC for $200 per coin.

Then from 2016 to current date, I continue to sell some of my remaining coins.

Now I have around 10% of the coins that I held in 2013.

There is actually no way to know how many people did what, let alone speculate whether they are the minority or the majority. In fact if I had to guess most people who have stuck around for long are already aware of these so called "price dumps" and aren't making rash decisions like the newcomers do. For example someone who has bought bitcoin at $200 5 years ago has never been concerned about price dropping to $3000 because why would they be?!!

I am into both options since 2013. I am always there to stack more Satoshis, when the bears come out to play. Buying low, selling high and stacking some profits to hodl long term.  Some of the Bitcoins went into shopping at pump times, some I have given as gifts to newbies, some I have lost due to bad investments (gold for example was one of these in 2014 - shittiest investment I have ever made).

Make what you want of these reports
- July 2019: https://coinmetrics.substack.com/p/coin-metrics-state-of-the-network-cf2
- Nov 2019: https://bitcoinexchangeguide.com/its-been-five-years-since-21-6-of-bitcoin-has-moved-reaching-an-all-time-high/

I still doubt that many members here would openly admit that they are still holding the bitcoins they bought at few hundred bucks or less which are now worth million/s in USD. There's also a good chance that they already left the forum or became inactive for years.

Not me obviously. Just got here on 2017 and started accumulating bitcoin on the mid of 2018. So even though I'm here for more than three years already, I don't have much savings yet. But considering that I have already accumulated some bitcoin, I think I'd be holding it for a while. After another two years, I think I'd still be holding some bitcoin and by that time, I can say that I'm one of those people who hold bitcoin for more than 5 years.

I first bought some BTC back in 2017 when it was just around $800 back then I thought that it was already high price for a 1 whole piece of coin,
But I was wrong the price of Bitcoin could get even higher and because of it I took my profit along with some Sats that I gain from faucets and winnings on gambling.
I don't hold BTC for a long time or I couldn't since I would always convert it into Fiat to take profit.

After five years i hope it price can be 50k+. I know btc when it 300$ but today it price 20k. If you sell now after 5 years you will be tell sad story in your friend and family.

I got to know bitcoin in mid-2017 so it hasn't been 5 years, but it seems like a little to those who have held bitcoin for 5 years.
Personally, although I have not known and used bitcoin for 5 years, I have bought and sold bitcoin many times for reasons of need and sold it when the price went up from the price before I owned it.
and the reason I didn't hold it for long is because bitcoin can solve my financial problems and can change my life for the better especially in the economy.

I have understood the purpose of your question. The majority of investors here cannot hold for more than 5 years because the Crypto market is considered a manipulative market and it is ingrained in everyone's subconscious. I believe so.
I was also an early Bitcoin investor investing in it back in 2014 and unfortunately I bought BTC at around $ 800. After I bought Bitcoin, it dropped more and more and I completely lost faith in it and sold all BTC at $ 325 by the end of 2014. From then on, I lost interest in BTC until five 2017.
It can be concluded that there were a lot of investors in BTC early on but not everyone has the patience and confidence to hold it over a 5 year period. And of course, not many of them are now rich