2019
2018
In thousands
$
%
$
%
Drinkable Kefir other than ProBugs
$ 71,822
77%
$ 78,523
76%
Cheese
11,459
12%
11,486
11%
Cream and other
4,228
4%
5,276
5%
ProBugs Kefir
2,780
3%
2,795
3%
Other dairy
1,756
2%
3,836
4%
Frozen Kefir (a)
1,617
2%
1,434
1%
Net Sales
$ 93,662
100%
$ 103,350
100%

text: Our product categories are:
text: Drinkable Kefir, sold in a variety of organic and non-organic sizes, flavors, and types, including low fat, non-fat, whole milk, protein, and BioKefir (a 3.5 oz. kefir with additional probiotic cultures).
text: European-style soft cheeses, including farmer cheese in resealable cups.
text: Cream and other, which consists primarily of cream, a byproduct of making our kefir.
text: ProBugs, a line of kefir products designed for children.
text: Other Dairy, which includes Cupped Kefir and Icelandic Skyr, a line of strained kefir and yogurt products in resealable cups.
text: Frozen Kefir, available in soft serve and pint-size containers.
text: Lifeway has determined that it has one reportable segment based on how our chief operating decision maker manages the business and in a manner consistent with the internal reporting provided to the chief operating decision maker. The chief operating decision maker, who is responsible for allocating resources and assessing our performance, has been identified collectively as the Chief Financial Officer, the Chief Operating Officer, the Chief Executive Officer, and Chairperson of the board of directors. Substantially all of our consolidated revenues relate to the sale of cultured dairy products that we produce using the same processes and materials and are sold to consumers through a common network of distributors and retailers in the United States.
text: Net sales of products by category were as follows for the years ended December 31:
text: (a) Includes Lifeway Kefir Shop sales
text: Significant Customers – Sales are predominately to companies in the retail food industry located within the United States. Two major customers accounted for approximately 22% and 21% of net sales for the years ended December 31, 2019 and 2018, respectively. Two major customers accounted for approximately 17% of accounts receivable as of December 31, 2019 and 2018. Our ten largest customers as a group accounted for approximately 57% and 59% of net sales for the years ended December 31, 2019 and 2018, respectively.

Questions:
question: What is net sales from cheese in 2018 and 2019 respectively?
answer: 11,486
11,459
scale: thousand
question: What is net sales from cream and other in 2018 and 2019 respectively?
answer: 5,276
4,228
scale: thousand
question: What is net sales from ProBugs Kefir in 2018 and 2019 respectively?
answer: 2,795
2,780
scale: thousand
question: How many product categories are available?
answer: 6
derivation: Drinkable Kefir other than ProBugs ## Cheese ## Cream and other ## ProBugs Kefir ## Other dairy ## Frozen Kefir
question: What is the change in the net sales for cheese between 2018 and 2019?
answer: -27
derivation:  11,459 - 11,486 
scale: thousand
question: What is the percentage change in net sales from Frozen Kefir between 2018 and 2019?
answer: 12.76
derivation: (1,617-1,434)/1,434
scale: percent