SELECT '[0-10]' as age_group, count(*) as wizard_count
FROM wizzard_deposits
WHERE age BETWEEN 0 AND 10
UNION
SELECT '[11-20]' as age_group, count(*) as wizard_count
FROM wizzard_deposits
WHERE age BETWEEN 10 AND 20
UNION
SELECT '[21-30]' as age_group, count(*) as wizard_count
FROM wizzard_deposits
WHERE age BETWEEN 21 AND 30
UNION
SELECT '[31-40]' as age_group, count(*) as wizard_count
FROM wizzard_deposits
WHERE age BETWEEN 31 AND 40
UNION
SELECT '[41-50]' as age_group, count(*) as wizard_count
FROM wizzard_deposits
WHERE age BETWEEN 41 AND 50
UNION
SELECT '[51-60]' as age_group, count(*) as wizard_count
FROM wizzard_deposits
WHERE age BETWEEN 51 AND 60
UNION
SELECT '[61+]' as age_group, count(*) as wizard_count
FROM wizzard_deposits
WHERE age > 60