WITH estudientesPorCurso as (SELECT RBD, LET_CUR, COD_JOR,COD_DEPE2, count(*) as estudiantes
FROM "20230906_Matrícula_unica_2023_20230430_WEB"
WHERE COD_ENSE3 = 2 AND COD_GRADO2 = 1 AND RURAL_RBD = 0
GROUP BY RBD, LET_CUR, COD_JOR, COD_DEPE2)
SELECT COD_DEPE2 as dependencia, estudiantes as tamañoCurso, count(*) as numeroCursos
FROM estudientesPorCurso
GROUP BY COD_DEPE2, estudiantes
ORDER BY COD_DEPE2, estudiantes