小白求助…

在stata中控制国家和年份的固定效应，国家总被省略，这样的话还能在结果中报告已控制国家固定效应吗？

代码是这样的
xtset id year

xi:xtreg mv llh1 scl un gh jy i.year i.code,fe

note: _Iyear_2014 omitted because of collinearity
note: _Icode_2 omitted because of collinearity
note: _Icode_3 omitted because of collinearity
note: _Icode_4 omitted because of collinearity
note: _Icode_5 omitted because of collinearity
note: _Icode_6 omitted because of collinearity
note: _Icode_7 omitted because of collinearity
note: _Icode_8 omitted because of collinearity
note: _Icode_9 omitted because of collinearity
note: _Icode_10 omitted because of collinearity
note: _Icode_11 omitted because of collinearity
note: _Icode_12 omitted because of collinearity
note: _Icode_13 omitted because of collinearity
note: _Icode_14 omitted because of collinearity
note: _Icode_15 omitted because of collinearity
note: _Icode_16 omitted because of collinearity
note: _Icode_17 omitted because of collinearity
note: _Icode_18 omitted because of collinearity
note: _Icode_19 omitted because of collinearity
note: _Icode_20 omitted because of collinearity
note: _Icode_21 omitted because of collinearity
note: _Icode_22 omitted because of collinearity
note: _Icode_23 omitted because of collinearity
note: _Icode_24 omitted because of collinearity
note: _Icode_25 omitted because of collinearity
note: _Icode_26 omitted because of collinearity
note: _Icode_27 omitted because of collinearity
note: _Icode_28 omitted because of collinearity
note: _Icode_29 omitted because of collinearity
note: _Icode_30 omitted because of collinearity
note: _Icode_31 omitted because of collinearity
note: _Icode_32 omitted because of collinearity
note: _Icode_33 omitted because of collinearity
note: _Icode_34 omitted because of collinearity
note: _Icode_35 omitted because of collinearity
note: _Icode_36 omitted because of collinearity