The value of the pound declined by 20% over the last 12 months.
UK's 2016 GDP of GBP 1.87 trillion converts to $2.29 trillion at exchange rate of ~GBP 0.81 per $1.

India's GDP of INR 153 trillion converts to $2.30 trillion at exchange rate of ~INR 66.6 per $1.

France has a GDP of about 2.22 trillion euro. This converts to $2.3 trillion at an $1.0389 per 1 euro.