Jan 3 (Reuters) - Sri Lankan shares started 2022 with all-time highs on Monday as financial and industrial stocks climbed, building on the index"s whopping 80% surge last year. * The CSE All-Share index (.CSE) leaped 3.3% to 12,625.82. The COVID-battered 2021 was the index"s best year since 2010. * Monday"s gains were biggest since Sept. 27 and extended the index"s rally into a fourth straight session. * Financial solutions provider LOLC Finance (LOLF.CM) and conglomerate LOLC Holdings (LOLC.CM) were the biggest boosts to the index. * Data released after market hours on Friday showed Sri Lanka"s consumer price inflation rose 12.1% year-on-year in December, after a 9.9% rise in November. * The equity market"s turnover was 9.64 billion Sri Lankan rupees ($47.55 million) on Monday, according to stock exchange data. * Trading volume dipped to 773.9 million shares, from 858 million shares in the previous session. * Foreign investors were net buyers in the equity market, acquiring shares worth 119.2 million rupees, exchange data showed. * Sri Lanka has reported 587,935 coronavirus cases and 15,019 deaths, as of Friday, data from the country"s health bureau showed. * About 63.5% of Sri Lanka"s population has been fully vaccinated, according to data from Johns Hopkins University. * For a report on global markets, click