求助，面板数据2013年到2020年，双向固定，回归结果显著，但出现了下面的问题，请问这个结果可以直接用吗，这些被省略的年份是否可以省略不管？
note: 2014.year omitted because of collinearity
note: 2015.year omitted because of collinearity
note: 2016.year omitted because of collinearity
note: 2017.year omitted because of collinearity
note: 2018.year omitted because of collinearity
note: 2019.year omitted because of collinearity
note: 2020.year omitted because of collinearity