Find approximate exponential functions for the two functions, thank you.

For each function that is not segmented, a complete expression from 2019-2035 is required.

just have to figure out an approximate formula for the function based on the numbers given. Topic is about predicting the proportion of car sales in the future. Thank you

50% 40% Tjong-term solution: enterprises with full confidence in BEV technical romte and large technical reserves and production capacity NDEP Transition solution enterprise that have doubts about BEV technical route and have a strong accumulagion of traditional technogle Rapid development stage of new energy CP vehicles (Proportion >15%) Temporary solution: enterprises with weaker strength but striving for survival 30% Product performance of BEVs Proportion of sales (%) 20% PHEV --BEV 10% 0% 2019 2020 2025 2030 2035 Time Figure 5. Development trend of NEV platform. 50% 40% Tjong-term solution: enterprises with full confidence in BEV technical romte and large technical reserves and production capacity NDEP Transition solution enterprise that have doubts about BEV technical route and have a strong accumulagion of traditional technogle Rapid development stage of new energy CP vehicles (Proportion >15%) Temporary solution: enterprises with weaker strength but striving for survival 30% Product performance of BEVs Proportion of sales (%) 20% PHEV --BEV 10% 0% 2019 2020 2025 2030 2035 Time Figure 5. Development trend of NEV platform