Bitcoin is becoming a national treasure in El Salvador under the leadership of President Nayib Bukele. Here I am showing the history of BTC purchases made by El Salvador so far from time being. (Source is Tweets of Nayib Bundle).
1&2). The historic first as well as the second purchase took place on September 6, 2021, when President Nayib Bukele launched the digital currency treasury with two purchases of 200 BTC, making total purchase of 400 bitcoins.

3). The third purchase was completed the very next day on September 7, 2021, by purchasing 150 BTC, bringing the bitcoin treasure of El Salvador's to 550 BTC.

4). The fourth purchase took place on September 19, 2021, this time also 150 BTC were purchased, taking the total to 700 BTC in the country.

5). The fifth purchase took place on October 27, 2021, this time with the highest purchase of 420 BTC, making El Salvador's digital currency treasury to cross 1k BTC for first time. (This quantity is by far the largest purchase made by El Salvador in a single time).

After this purchase, the total treasury became 1120 Bitcoins. After this purchase, Nayib Nukele also planned to build a bitcoin city in the country.
6). The sixth purchase was completed on November 27, 2021 when Bukele purchased 100 BTC.

This made a total jackpot of 1220 BTC.
7). The seventh purchase was made on December 4, 2021 that was 150 BTC.

At this time the value of bitcoin was between 48k and 49k. And the treasury of El Salvador became 1370 BTC.
8). The eighth purchase took place on December 21, 2021, this time only 21 BTC were bought at historic time 21:21:21. (This quantity is by far the minimum purchase made by El Salvador at one time).

After that purchase, there were a total of 1391 bitcoins in the country.
9). The ninth purchase occurred on January 21, 2022 when the El Salvador Treasury reached 1801 bitcoin due to purchase of 410 BTC for about $15 million at the time of the market crash.

Nayib Bukele's journey on El Salvador Bitcoin treasury continues. This is controversial as well as popular journey.