Date form a csv file

Processing Coding Questions
10

So this is the graph im making.

https://imgur.com/ZPOYMjA

I have value acording to each hour of the day and colors represent each month. here is the code. Lets say i want to average the value of each month and graph how they are changing. Should i ask in my if statement to add all the value and then divide by the lenght of the rows?

size(2880,400);
background(0);

float w=0;
float h=0;
Table table = loadTable("indice_2018.CSV","header");
//Table row = new Table();


for(int i = 0; i<2880; i++){
    w = w + .6;
    h= h+ 14.4;
    String date = table.getString(i,"Fecha");
    String d = date.substring(0,2);
    String m = date.substring(3,5);
    String a = date.substring(6,10);
    
    //if ( d == "01"){
    
    
    int x= table.getInt(i,"Hora");
    int y = table.getInt(i,"Centro PM10");
    noStroke();
    rect(w,y+200,2,2);
   
   if(m.equals("01")){
    fill(#FAFF00);
   }else if(m.equals("02")) {
    fill(#00FF63);
    }else if(m.equals("03")) {
      fill(#008AFF);
    }else if(m.equals("04")) {
       fill(#FF002F);
    }else{
}

    }