# **Last data update**: 01 aoû 2026, 21:30. **Last compile**: 15 aoû 2026, 15:20
Exchange Rates - TRADHIST_EXCHANGE_RATES
Data - CEPII
Info
countrycode
Ex 1: Pounds / Franc
Code
TRADHIST_EXCHANGE_RATES |>
select(year, value = XCHtoGBR, variable = iso) |>
filter(variable == "FRA") |>
ggplot() + geom_line(aes(x = year, y = value)) +
theme_minimal() + xlab("") + ylab("")
Ex 2: Pounds / Franc
Code
TRADHIST_EXCHANGE_RATES |>
select(year, value = XCHtoGBR, variable = iso) |>
filter(variable == "FRA",
year >= 1960) |>
ggplot() + geom_line(aes(x = year, y = value)) +
theme_minimal() + xlab("") + ylab("")
Ex 3: Francs in Marks (1950-)
Code
TRADHIST_EXCHANGE_RATES |>
select(year, value = XCHtoGBR, variable = iso) |>
filter(variable %in% c("FRA", "DEU")) |>
spread(variable, value) |>
mutate(ERate = FRA / DEU) |>
filter(year >= 1950) |>
ggplot() + geom_line(aes(x = year, y = ERate)) +
theme_minimal() + xlab("") + ylab("")
Ex 4: UK/FRA
September 19, 1931, speculative attacks on the pound forced Britain to abandon the gold standard
Code
TRADHIST_EXCHANGE_RATES |>
select(year, value = XCHtoGBR, variable = iso) |>
filter(variable == "FRA") |>
ggplot() + geom_line(aes(x = year, y = value)) +
theme_minimal() + xlab("") + ylab("")