Как перебрать массив, что бы получить такой результат?

Audi : 100, 200, 50, 80, 90,920,A1, A2, A3, A4, A4allroad, A5, A6, A6allord, A7, A8, Cabriolet, Coupe, NSU RO 80, Q3, Q5, Q7, Quattro, R8, RS2, RS3, RS4, RS5, RS6, RS7, RS Q3, S1, S2, S3, S4, S5, S6, S7, S8, SQ5, TT, TT RS, TTS, V8

var selectModel = { "1" : "100", "2" : "200", "3" : "50", "4" : "80", "5" : "90", "6" : "920", "7" : "A1", "8" : "A2", "9" : "A3", "10" : "A4", "11" : "A4allroad", "12" : "A5", "13" : "A6", "14" : "A6allord", "15" : "A7", "16" : "A8",  "17" : "Cabriolet", "18" : "Coupe", "19" : "NSU RO 80", "20" : "Q3", "21" : "Q5", "22" : "Q7", "23" : "Quattro", "24" : "R8", "25" : "RS2", "26" : "RS3", "27" : "RS4", "28" : "RS5", "29" : "RS6", "30" : "RS7", "31" : "RS Q3", "32" : "S1", "33" : "S2", "34" : "S3", "35" : "S4", "36" : "S5", "37" : "S6", "38" : "S7", "39" : "S8", "40" : "SQ5", "41" : "TT", "42" : "TT RS", "43" : "TTS", "44" : "V8" };