| Preschool enrolment of children aged 1–6 | 2010 | 12.9% of children aged 1–6 | |
| Preschool enrolment of children aged 1–6 | 2011 | 14.5% of children aged 1–6 | |
| Preschool enrolment of children aged 1–6 | 2012 | 16.1% of children aged 1–6 | |
| Preschool enrolment of children aged 1–6 | 2013 | 17.5% of children aged 1–6 | |
| Preschool enrolment of children aged 1–6 | 2014 | 19.5% of children aged 1–6 | |
| Preschool enrolment of children aged 1–6 | 2015 | 19.9% of children aged 1–6 | |
| Preschool enrolment of children aged 1–6 | 2016 | 22.1% of children aged 1–6 | |
| Preschool enrolment of children aged 1–6 | 2017 | 23.5% of children aged 1–6 | |
| Preschool enrolment of children aged 1–6 | 2018 | 24.6% of children aged 1–6 | |
| Preschool enrolment of children aged 1–6 | 2019 | 25.4% of children aged 1–6 | |
| Preschool enrolment of children aged 1–6 | 2020 | 22.0% of children aged 1–6 | |
| Preschool enrolment of children aged 1–6 | 2021 | 23.9% of children aged 1–6 | |
| Preschool enrolment of children aged 1–6 | 2022 | 26.4% of children aged 1–6 | |
| Preschool enrolment of children aged 1–6 | 2023 | 28.3% of children aged 1–6 | |
| Preschool enrolment of children aged 1–6 | 2024 | 32.3% of children aged 1–6 | |
| Preschool enrolment of children aged 1–6 | 2025 | 34.7% of children aged 1–6 | |
| Urban preschool enrolment | 2010 | 28.0% of children aged 1–6 | |
| Urban preschool enrolment | 2011 | 29.9% of children aged 1–6 | |
| Urban preschool enrolment | 2012 | 32.1% of children aged 1–6 | |
| Urban preschool enrolment | 2013 | 31.6% of children aged 1–6 | |
| Urban preschool enrolment | 2014 | 32.3% of children aged 1–6 | |
| Urban preschool enrolment | 2015 | 31.1% of children aged 1–6 | |
| Urban preschool enrolment | 2016 | 32.3% of children aged 1–6 | |
| Urban preschool enrolment | 2017 | 34.2% of children aged 1–6 | |
| Urban preschool enrolment | 2018 | 34.6% of children aged 1–6 | |
| Urban preschool enrolment | 2019 | 34.5% of children aged 1–6 | |
| Urban preschool enrolment | 2020 | 29.1% of children aged 1–6 | |
| Urban preschool enrolment | 2021 | 28.5% of children aged 1–6 | |
| Urban preschool enrolment | 2022 | 40.7% of children aged 1–6 | |
| Urban preschool enrolment | 2023 | 40.0% of children aged 1–6 | |
| Urban preschool enrolment | 2024 | 38.1% of children aged 1–6 | |
| Urban preschool enrolment | 2025 | 41.0% of children aged 1–6 | |
| Rural preschool enrolment | 2010 | 6.3% of children aged 1–6 | |
| Rural preschool enrolment | 2011 | 7.4% of children aged 1–6 | |
| Rural preschool enrolment | 2012 | 8.8% of children aged 1–6 | |
| Rural preschool enrolment | 2013 | 10.8% of children aged 1–6 | |
| Rural preschool enrolment | 2014 | 13.2% of children aged 1–6 | |
| Rural preschool enrolment | 2015 | 14.2% of children aged 1–6 | |
| Rural preschool enrolment | 2016 | 16.6% of children aged 1–6 | |
| Rural preschool enrolment | 2017 | 17.9% of children aged 1–6 | |
| Rural preschool enrolment | 2018 | 19.3% of children aged 1–6 | |
| Rural preschool enrolment | 2019 | 20.6% of children aged 1–6 | |
| Rural preschool enrolment | 2020 | 20.2% of children aged 1–6 | |
| Rural preschool enrolment | 2021 | 21.3% of children aged 1–6 | |
| Rural preschool enrolment | 2022 | 20.7% of children aged 1–6 | |
| Rural preschool enrolment | 2023 | 23.2% of children aged 1–6 | |
| Rural preschool enrolment | 2024 | 28.8% of children aged 1–6 | |
| Rural preschool enrolment | 2025 | 31.1% of children aged 1–6 | |