Table:
Parkinson's disease
Other names	Parkinson disease, idiopathic or primary parkinsonism, hypokinetic rigid syndrome, paralysis agitans, shaking palsy

Illustration of Parkinson's disease by William Richard Gowers, first published in A Manual of Diseases of the Nervous System (1886)
Specialty	Neurology
Symptoms	Shaking, rigidity, slowness of movement, difficulty walking[1]
Complications	Dementia, depression, anxiety[2]
Usual onset	Age over 60[1][3]
Causes	Unknown[4]
Risk factors	Pesticide exposure, head injuries[4]
Diagnostic method	Based on symptoms[1]
Differential diagnosis	Dementia with Lewy bodies, progressive supranuclear palsy, essential tremor, antipsychotic use[5]
Treatment	Medications, surgery[1]
Medication	L-DOPA, dopamine agonists[2]
Prognosis	Life expectancy ~ 15 years[6]
Frequency	6.2 million (2015)[7]
Deaths	117,400 (2015)[8]

Based on the provided table, find the positions of cells with the subsequent values. Return their locations using the JSON format {'value': '<cell value>', 'location': (row index, column index)}, starting from 1 for both row and column indices. For the case where a cell is not contained in the table, its location should be denoted as 'DOES NOT EXIST'.
The target cell values:
1. '6.2 million (2015)';
2. 'Unknown';
3. 'Complications';
4. 'Causes';
5. 'Age over 60';

The target cell locations are as follows:
1. {'value': '6.2 million (2015)', 'location': (14, 2)}
2. {'value': 'Unknown', 'location': (7, 2)}
3. {'value': 'Complications', 'location': (5, 1)}
4. {'value': 'Causes', 'location': (7, 1)}
5. {'value': 'Age over 60', 'location': (6, 2)}