(Adds details) MADRID, July 30 (Reuters) - The Spanish economy rebounded faster than expected in the second quarter after unexpectedly contracting in the first three months of the year, when rising COVID-19 contagion forced new restrictions on businesses. Spain’s gross domestic product expanded 2.8% in April-June compared to the quarter before, faster than the 2.2% expected by analysts, official data showed on Friday. The economy had contracted 0.4% in January-March. “This week’s data confirm a strong recovery is ongoing,” Economy Minister Nadia Calvino said on her Twitter account. Year on year, the economy grew a stunning 19.8% in April-June, partly recovering ground lost during the second quarter of 2020 when Spain’s strict coronavirus lockdown caused a 21.5% contraction.