Period of California Residency Before 2022

Hi guys, I need some help with this. I moved abroad in 2017 and I know the exact date for that one since it's on the passport but I do not really know the start date of my CA residency. My family moved to New Jersey for a year and then moved back in like 2002 sometime in the summer. Since this was like 15 years ago, is it ok to give a best guess of when we actually arrived in CA?

 

We drove the whole way there so there would be no flight history or anything. 

 

Thank you for the help.