Reliable data?

I was trying to make some plots, but the data hurts when I look for volume data (back in time).

I know how I want to track forwardly now - What data provider are you relying on when getting data from back in time?

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First some data

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Little data on BTCUSD since 2014:

In USD:

ret_daily_mean(dm) = 0.203

ret_daily_sd(dsd) = 3.86

ret_daily_min(dm) = -37.2

ret_daily_max(dmx) = 25.2

Seems like DCA is not a bad IDEA.

In USD:

<Year> <dm> <dsd> <dm> <dmx>

1 2014 -0.284 3.36 -8.52 15.2

2 2015 0.148 3.60 -21.1 17.8

3 2016 0.252 2.51 -15.3 11.9

4 2017 0.861 4.99 -18.7 25.2

5 2018 -0.273 4.24 -16.9 13.2

6 2019 0.242 3.56 -14.1 17.4

7 2020 0.458 3.77 -37.2 18.2

8 2021 0.216 4.21 -13.8 18.7

9 2022 -0.247 3.47 -16.0 14.5

Until now 2022 is in red.

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Volume data in billion USD:

<Year> <dm> <dsd> <dm> <dmx>

1 2014 0.0238 0.0150 0.00591 0.0836

2 2015 0.0339 0.0271 0.00786 0.264

3 2016 0.0859 0.0503 0.0285 0.363

4 2017 2.38 3.79 0.0609 22.2

5 2018 6.06 3.09 2.92 23.8

6 2019 16.7 7.47 4.32 45.1

7 2020 33.0 11.7 12.3 74.2

8 2021 47.2 24.7 18.8 351.

9 2022 30.0 10.1 13.7 84.2

Volume has gone down in 2022:

What can be the reason?

- People wrapping coins in lightning(L2), funds(stocks), Defi(on other chains), etc ?

Links:

See data

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