[
{
    "category": "item1",
    "amount": 10
},
{
    "category": "item2",
    "amount": 15
},
{
    "category": "item3",
    "amount": 20
},
{
    "category": "item4",
    "amount": 9
},
{
    "category": "item5",
    "amount": 5
},
{
    "category": "item6",
    "amount": 11
},
{
    "category": "item7",
    "amount": 15
},
{
    "category": "item8",
    "amount": 18
},
{
    "category": "item9",
    "amount": 15
},
{
    "category": "item10",
    "amount": 12
},
{
    "category": "item11",
    "amount": 11
}
]