pre_text: Results of Operations Year Ended March 31, 2019 compared to Year Ended March 31, 2018 Net sales for the fiscal year ended March 31, 2019 were $1,791.8 million compared to $1,562.5 million for the fiscal year ended March 31, 2018. The table below represents product group revenues for the fiscal years ended March 31, 2018 and 2019. Electronic Component sales were $1,290.0 million for the fiscal year ended March 31, 2019 compared to $1,235.2 million during the fiscal year ended March 31, 2018.
  The sales increase in Electronic Components product sales was driven by increased volume and a favorable pricing environment in our Ceramic and Tantalum
  Components across most markets resulting from favorable global market conditions and increased demand for our electronic component products resulting from
  technological advances across a broad range of industries driven by IoT and an increasingly connected world led by the automotive, industrial, telecommunications,
  networking, and computer markets. Fiscal year 2019 Advanced Components group sales include $113.3 million of Ethertronics product as compared to $12.7 million for
  fiscal year 2018. These increases were partially offset by the loss of Kyocera resale product sales which were $19.0 million for fiscal year 2019 as compared to $296.3
  million for fiscal year 2018. Total Interconnect, Sensing and Control Devices product sales were $501.8 million in the fiscal year 2019 as compared to $327.3 million during the fiscal year 2018.
  This increase is attributable to sales growth in the automotive industry in addition to sales resulting from our S&C acquisition which accounted for $354.7 million for
  fiscal year 2019 as compared to $193.3 million for fiscal year 2018. Our sales to independent electronic distributors represented 42.3% of total net sales for the fiscal year ended March 31, 2019, compared to 42.7% for fiscal year
  ended March 31, 2018. Overall, distributor sales activity increased in dollars when compared to the same period last year due to a more favorable pricing environment
  and increased order activity throughout the year in response to extended product delivery lead times. This increase in distributor activity is reflective of the increased
  customer demand and steadily improving market conditions. Our sales to distributor customers involve specific ship and debit and stock rotation programs for which
  sales allowances are recorded as reductions in sales. As a result of the favorable pricing environment and high demand, such allowance charges decreased to $28.9
  million, or 3.9% of gross sales to distributor customers, for the fiscal year ended March 31, 2019 compared to $30.5 million, or 4.6% of gross sales to distributor
  customers, for the fiscal year ended March 31, 2018. Applications under such programs for fiscal years ended March 31, 2019 and 2018 were approximately $24.4 million
  and $29.4 million, respectively. The regional sales percentages of our total sales in the fiscal year ended March 31, 2019 decreased in the Asian region while increasing in the European and
  American regions compared to the fiscal year ended March 31, 2018 reflective of the increased European sales activity resulting from our acquisitions. Sales in the
  Asian, American, and European regions represented 31.4%, 27.1% and 41.5% of total sales, respectively, for the fiscal year ended March 31, 2019. This compares to
  37.2%, 25.6% and 37.2% of total sales for the Asian, American, and European regions in the prior year, respectively. As a result of the movement of the U.S. dollar
  against certain foreign currencies, reported sales for the fiscal year ended March 31, 2019 were unfavorably impacted by approximately $33.3 million when compared to
  the prior year. Gross profit in the fiscal year ended March 31, 2019 was $482.9 million, compared to gross profit of $318.9 million in the fiscal year ended March 31, 2018. Gross
  profit as a percentage of sales for the fiscal year ended March 31, 2019 was 27.0% compared to 20.4% for the fiscal year ended March 31, 2018. The increase in gross
  profit as a percentage of sales reflects a better margin product mix, improved operating efficiencies, cost control, and a more favorable pricing environment in the market.
  We incurred costs of $9.2 million for the fiscal year ended March 31, 2019, as compared to $4.2 million for the fiscal year ended March 31, 2018, due to incremental
  depreciation and amortization as a result of purchase accounting adjustments to inventory and fixed assets related to the S&C, Ethertronics and Kumatec acquisitions.
  For the fiscal year ended March 31, 2019, gross profit due to currency movement were unfavorably impacted by approximately $7.2 million when compared to the
  previous fiscal year
table: Net sales (in thousands) 2018 2019
table: Ceramic Components $226,204 $421,849
table: Tantalum Components 366,194 382,905
table: Advanced Components 642,775 485,208
table: Total Electronic Components 1,235,173 1,289,962
table: Interconnect, Sensing and Control Devices 327,301 501,828
table: Total Net Sales $1,562,474 $1,791,790
question: Analyse this data from a financial earnings document. What is the change in total net sales between 2018 and 2019?