Display Percentage of Each Response per Question Across Year

[Anonymous]

I am trying to create a column chart to show the percentage of each response option across each year. For example, for question 1, I want to know the percentage of people who responded agree vs disagree for 2015, 2016, 2017, and 2018. I have Q1 as the axis and SurveyYear as the Legend. When I use Q1 as the value, it gives me the percentage of each response grand total and not yearly total. To fix this, I created a new measure for the value: 

#ofRespondentsT = DIVIDE(COUNTA(Satisfaction_Survey[Q1]), CALCULATE(COUNTA(Satisfaction_Survey[Q1]), ALLEXCEPT(Satisfaction_Survey,Satisfaction_Survey[SurveyYear])))

My issue is that I want to omit anyone who didn't respond to that question (BLANK), AND those who responded NA-Not Applicable, but my current measure is including those in the formula. How do I edit my measure so both BLANK and NA-Not Applicable are omitted? I have attached a photo of my sample data. 

Goal: Determine the percentage of each response option by year for Q1 omitting NA and BLANK from total responses.