fix: fix crash when viewing income graph on analyze page

app/presenters/analyze/graph/column/income_column/score_for_income.rb

@@ -0,0 +1,42 @@
+module Analyze
+  module Graph
+    module Column
+      module IncomeColumn
+        module ScoreForIncome
+          def score(year_index)
+            academic_year = academic_years[year_index]
+            meets_student_threshold = sufficient_student_responses?(academic_year:)
+            return Score::NIL_SCORE unless meets_student_threshold
+
+            averages = SurveyItemResponse.averages_for_income(measure.student_survey_items, school, academic_year,
+                                                              income)
+            average = bubble_up_averages(averages:).round(2)
+
+            Score.new(average:,
+                      meets_teacher_threshold: false,
+                      meets_student_threshold:,
+                      meets_admin_data_threshold: false)
+          end
+
+          def bubble_up_averages(averages:)
+            measure.student_scales.map do |scale|
+              scale.survey_items.map do |survey_item|
+                averages[survey_item]
+              end.remove_blanks.average
+            end.remove_blanks.average
+          end
+
+          def sufficient_student_responses?(academic_year:)
+            return false unless measure.subcategory.response_rate(school:, academic_year:).meets_student_threshold?
+
+            yearly_counts = SurveyItemResponse.where(school:, academic_year:,
+                                                     income:, survey_item: measure.student_survey_items).group(:income).select(:response_id).distinct(:response_id).count
+            yearly_counts.any? do |count|
+              count[1] >= 10
+            end
+          end
+        end
+      end
+    end
+  end
+end