Currency Converter Foreign Exchange Rates OANDA

First things first:
Dataset from kaggle
This image from Wikipedia is what I want to create
R code:

library(ggplot2) african_economicdata <- read.csv("african_crises.csv") Z_ED <- subset(african_economicdata, country == "Zimbabwe") Z_ED2001 <- subset(Z_ED, year > 2000) Z_ED2001$log10_exchange <- log10(Z_ED2001$exch_usd) ggplot(Z_ED2001, aes(Z_ED2001$year,Z_ED2001$log10_exchange)) + geom_line() +geom_point() + xlab("Year") + ylab("Exchange Rate in USD") + theme_minimal()

Here is what the result looks like
A few things are throwing me off:

This happens to be a cross section of two things i never really understood in my bachelors, forex and logarithms
From the eye test the curve looks similar to the image from wikipedia, but the y-axis values don't make much sense to me (possibly due logarithms as previously stated).
The dataset in Kaggle is light on details and I don't really know how to interpret the exchange rate values. Take 2001 for instance, does 5.510 x 10^-25 mean that 1 ZWD is equal to 5.510 x 10^-25 USD? The number is so small that it kind of melts my brain.
I'm having trouble finding information about the ZWD during this time period, the trends in the wikipedia image for OMIR and the Parallel rate seems to have much fine grain data, looking at the fluctuations between 07-08. Does that mean that the data I'm working with would be the Official data?

We use cookies to improve your browsing experience on our website, to analyse our website traffic, and to understand where our visitors are coming from. Free foreign exchange rates and tools including a currency conversion calculator, historical rates and graphs, and a monthly exchange rate average. North American Edition. Dollar and yen firmness, and sterling underperformance has continued for a second day. The narrow trade-weighted USD index (DXY) lifted to a one-month peak at 93.64, extending the rebound from the 29-month low that was seen last week at 91.75. Forex trading. See prices on 70 major and minor currency pairs with two transparent pricing models. See trading. Currency converter. Access real-time rates for all the major FX pairs, plus up to 25 years' historical exchange rates across 38,000 forex pairs. See converter. FX Data Services. North American Edition. Dollar and yen firmness, and sterling underperformance has continued for a second day. The narrow trade-weighted USD index (DXY) lifted to a one-month peak at 93.64, extending the rebound from the 29-month low that was seen last week at 91.75.

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Currency Converter Foreign Exchange Rates OANDA

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Basics of The Forex Market & Currency Pairs - YouTube