Salaries for Software engineers appear to have stagnated

Salaries for software engineers appear to have stagnated over the last three years:
* engineers in 2019 made~$1k more than 2018
* in 2020 made ~$10k more than 2019

Salaries are obviously still high, but it appears the explosive growth is over.

To estimate these numbers, I scraped salary data for large companies in 2018-2020, then ran a regression for salary with coefficients for level, company, location, and year.

Most coefficients made sense: Facebook, Google, and Uber paid top of market; and Saleforce at the bottom.

(I left Microsoft out due to unusual levels)

Surprisingly, the California salary was only ~$11k more than Washington state

Full table (coefficients in $1,000s):

	coef	P>|t|
common_level[senior]	313	0
common_level[staff]	486	0
common_level[swe2]	207	0
company[T.Apple]	-7	0.329
company[T.Facebook]	46	0
company[T.Google]	37	0
company[T.Salesforce]	-94	0
company[T.Uber]	48	0
C(year)[T.2019]	1	0.814
C(year)[T.2020]	13	0.01
cali[T.True]	11	0.009