array grouped by month year

gistfile1.txt

[
{
name: "郭崇曄",
id: "100003725453976",
date: "2012-11-07T21:38:05+0000"
},
{
name: "Omar Antonio Kennedy",
id: "100000461843786",
date: "2012-11-06T20:32:25+0000"
},
{
name: "Tibor Vigh",
id: "100001059205444",
date: "2012-11-07T21:38:05+0000"
},
{
name: "Spencer Stephens",
id: "41802268",
date: "2012-11-06T20:32:25+0000"
},
{
name: "Mario Coletti Bologna",
id: "100004027221950",
date: "2012-11-07T21:38:05+0000"
},
{
name: "Billy Moran",
id: "1680883896",
date: "2012-11-06T20:28:34+0000"
},
{
name: "Hameed Baber",
id: "1077758362",
date: "2012-11-07T21:38:05+0000"
},
{
name: "Paulo Ribeiro",
id: "1582575182",
date: "2012-11-06T20:28:34+0000"
},
{
name: "Patricia P Monrreal",
id: "100000645090041",
date: "2012-11-07T16:21:05+0000"
},
{
name: "Bentley Love",
id: "100001022361627",
date: "2012-11-05T20:21:48+0000"
},
{
name: "Erica Mozee",
id: "100002296657640",
date: "2012-11-07T16:21:05+0000"
},
]