combine_catch_data.RdReview rates for EM data was reduced below 100% starting in 2024. This change
requires data these data to not be treated as a census but rather use bootstrapping
to estimate discard rates and uncertainty. em_catch_data starting in 2024 are added
to catch_data and are categorized as non-catch share for bootstrapping
combine_catch_data(catch_data, em_catch_data)dataframe