Methodology:

stETH is a token that represents staked ether in Lido, combining the value of initial deposit + staking rewards. stETH tokens are minted upon deposit and burned when redeemed. stETH token balances are pegged 1:1 to the ethers that are staked by Lido. stETH token’s balances are updated when the oracle reports change in total stake every day.

In this bounty, the metrics that mentioned in the question are obtained.

To assess these metrics, the following considerations should be used:

1. Volume of stETH--> from ethereum.core.ez_token_transfers where SYMBOL='stETH'

2. Staking stETH--> from ethereum_core.fact_event_logs where contract_address = '0xae7ab96520DE3A18E5e111B5EaAb095312D7fE84' and event_name = 'Submitted'

3. Unstaking stETH--> from ethereum_core.EZ_TOKEN_TRANSFERS

   where contract_address = '0xae7ab96520DE3A18E5e111B5EaAb095312D7fE84'

   and FROM_ADDRESS = '0x0000000000000000000000000000000000000000'

   and ORIGIN_FUNCTION_SIGNATURE='0xa1903eab'

4. staked time--> by DATEDIFF(day, stake_time,unstake_time) as staked time

5. Time frame of this investigation is from start of 2022.

The volume of stETH and USD value of this volume shown in this figure.

As shown in this figure, the highest volume of stETH happened on May 11, 2022 with 1.9937 million stETH.

It can be seen that, the volume of stETH was very high around market crush dates (May 9 to 12).

As shown in the figure related to average stake per day, the highest stake per day happened on May 2 and Mar 15 with 558.8 and 528.7 stETH.

Daily number of stakers indicates that, the largest group of stakers occurred on Feb 11 with 2494 unique users and May 7 with 2192 unique users.

Outcomes:

The daily volume of stake and unstake are shown in this bar chart. From the overall point of view, the daily volume of stake was higher than unstake.

The highest volume of daily stake and unstake happened on Mar 15, 2022 with near 200k stETH.

Finally, the average staked time for users estimated and shown in the next content. According to that, the average staked time for stETH stakers is 5.18 days.