---
- start_date: 2013-04-06
  end_date: 2014-04-05
  maximum_married_couple_allowance: 7915
  minimum_married_couple_allowance: 3040

- start_date: 2014-04-06
  end_date: 2015-04-05
  maximum_married_couple_allowance: 8165
  minimum_married_couple_allowance: 3140

- start_date: 2015-04-06
  end_date: 2016-04-05
  maximum_married_couple_allowance: 8355
  minimum_married_couple_allowance: 3220

- start_date: 2016-04-06
  end_date: 2017-04-05
  maximum_married_couple_allowance: 8355
  minimum_married_couple_allowance: 3220

- start_date: 2017-04-06
  end_date: 2018-04-05
  maximum_married_couple_allowance: 8445
  minimum_married_couple_allowance: 3260

---
- start_date: 2013-04-06
  end_date: 2014-04-05
  maximum_married_couple_allowance: 7915
  minimum_married_couple_allowance: 3040

- start_date: 2014-04-06
  end_date: 2015-04-05
  maximum_married_couple_allowance: 8165
  minimum_married_couple_allowance: 3140

- start_date: 2015-04-06
  end_date: 2016-04-05
  maximum_married_couple_allowance: 8355
  minimum_married_couple_allowance: 3220

- start_date: 2016-04-06
  end_date: 2017-04-05
  maximum_married_couple_allowance: 8355
  minimum_married_couple_allowance: 3220

- start_date: 2017-04-06
  end_date: 2018-04-05
  maximum_married_couple_allowance: 8445
  minimum_married_couple_allowance: 3260

- start_date: 2018-04-06
  end_date: 2019-04-05
  maximum_married_couple_allowance: 8445
  minimum_married_couple_allowance: 3360

Add 2018-2019 rates for married couple's allowance
Add 2018-2019 rates for married couple's allowance

https://trello.com/c/0BubHO5U/125-1-6-april-calculate-your-married-couples-allowance
