Reference Data in Sliven 34 indicators covering reference data for Sliven. IndicatorLatest Year10-yr change Rank Cooling and heating degree days by NUTS 2 regions - annual data 5.61 % change on previous year 2025 up 8,468.0% 927th Cooling and heating degree days - Cities and FUAs — Cooling degree 195.56 Degree days 2025 down 1.8% 502nd Cooling and heating degree days - Cities and FUAs — Change in cooling 56.8 Degree days 2025 down 5.9% 293rd Cooling and heating degree days - Cities and FUAs 1,825 Degree days 2025 down 6.9% 481st Cooling and heating degree days - Cities and FUAs — Change in heating -419.34 Degree days 2025 down 48.0% 882nd Cooling and heating degree days - Cities and FUAs — Change in heating -13.08 % change on previous year 2025 down 152.7% 523rd Cooling and heating degree days - Cities and FUAs, annual growth rate -2.59 % change on previous year 2025 down 151.6% 499th Cooling and heating degree days - Cities and FUAs — Change in cooling -69.64 % change on previous year 2025 down 112.7% 376th Cooling and heating degree days - Cities and FUAs — Cooling degree -39.98 % change on previous year 2025 down 167.8% 673rd Cooling and heating degree days by NUTS 2 regions - monthly data -1.7 % change on previous year 2025 up 70.7% 732nd Precipitation - Cities and FUAs — Change in extreme precipitation -1.09 Days per year 2024 down 122.7% 1093rd Precipitation - Cities and FUAs — Extreme precipitation days 3.68 Days per year 2024 down 61.6% 891st Cooling and heating degree days by NUTS 2 regions - annual data 2,041 Number 2025 down 4.3% 1379th Cooling and heating degree days by NUTS 2 regions - monthly data 386.7 Number 2025 down 0.9% 973rd Dependency ratio - Cities and FUAs 44.6 Percentage of population aged 15-64 years 2025 up 18.6% 88th Wind threats - Cities and FUAs — Exposure to wind threats 0 Percentage of area 2023 — 271st Coastal flooding - Cities and FUAs — Built-up area exposure to 0 Percentage of built-up area 2022 — 277th Deaths (total) by NUTS 3 region 2,590 Number 2024 down 10.1% 1284th Internet speed - Cities and FUAs — Downloading speed 5.3 Percentage of national value 2025 up 43.2% 660th Internet speed - Cities and FUAs — Uploading speed 13.8 Percentage of national value 2025 up 2.2% 402nd Deaths by week, sex and NUTS 3 region 51 Number 2026 down 12.1% 961st Deaths by week and NUTS 3 region 51 Number 2026 down 12.1% 961st Deaths by week, sex, 5-year age group and NUTS 3 region 51 Number 2026 down 12.1% 956th Road accidents by NUTS 3 region 141 Number 2024 down 18.5% 1435th Area by NUTS 3 region 3,544 Square kilometre 2026 unchanged 1045th National road freight transport by region of unloading (NUTS 3) and 2,023 Thousand tonnes 2025 up 19.9% 1438th National road freight transport by region of loading (NUTS 3) and 1,526 Thousand tonnes 2025 down 32.6% 1497th Police-recorded offences by NUTS 3 region 1 Number 2024 down 75.0% 949th Nights spent at tourist accommodation establishments by NUTS 3 region 95,276 Number 2024 — 1545th Deaths by age group, sex and NUTS 3 region 2,590 Number 2024 down 10.1% 1282nd Guest nights spent at short-stay accommodation offered via 10,559 Number 2025 up 929.1% 1179th Nights spent at tourist accommodation establishments by NUTS 3 region 95,276 Number 2024 — 1132nd Area by NUTS 3 region 3,536 Square kilometre 2015 down 0.2% 844th Establishments, bedrooms and bed-places in tourist accommodation by 61 Number 2011 up 281.2% 1321st